Book 1

Tegami Bachi, Vol. 1

by Hiroyuki Asada

Published 1 September 2009
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Gauche Suede is on his last delivery before a big promotion. In the outskirts of Yodaka, the darkest area of Amberground, Gauche is surprised to find that the package is a young boy named Lag Seeing. Lag had been traumatized by his mother's abduction and is due to be delivered to his aunt. In this remote area rife with Gaichuu, Lag and Gauche face a dangerous journey that inspires Lag to become a Letter Bee.

Book 2

Tegami Bachi, Vol. 2

by Hiroyuki Asada

Published 2 March 2010
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag is close to becoming a Letter Bee! On the way to his final interview at the National Postal Service, he found a dingo: Niche, a feral young girl with shocking strength and hair made of golden swords. Now, as they approach the bridge to the middle-caste district, they stop to rest in Kyrie, a desperado town. They meet Nelli, a friendly young man who shows them to an inn. Nelli's so helpful that they never notice him steal Lag's crossing pass!

Book 3

Tegami Bachi, Vol. 3

by Hiroyuki Asada

Published 7 September 2010
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag almost breaks the record time on his Letter Bee test, securing a job as a Letter Bee! But his celebration ends with unwelcome news: the record holder, Gauche Suede, is no longer a Letter Bee! Shocked, Lag seeks out Gauche's little sister Sylvette to learn exactly what happened. But Sylvette has no answers, only memories and a broken heart. Gauche would never abandon his sister like that! Could it be he lost his heart...or his life?!

Book 4

Tegami Bachi, Vol. 4

by Hiroyuki Asada

Published 1 February 2011
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag, now a Letter Bee rookie, meets Dr. Thunderland, Jr., a peculiar man who collects and catalogs the various Amberground species. When the doctor takes a particular interest in Steak, Lag and Niche have to hustle to keep him off the doctor's dissection table! The ensuing chaos pays off for Lag when the doctor reveals that Gauche—Lag's missing hero—paid the doctor a visit before he disappeared.

Book 5

Tegami Bachi, Vol. 5

by Hiroyuki Asada

Published 3 May 2011
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

In the town of Honey Waters, Lag seeks out “the Man Who Could Not Become Spirit,” who might have information on the missing Gauche Suede. Lag's disappointed to find out that he's a charlatan. However, the heart of this strange man in this strange little town yields a surprising clue. Lag might be closer than he ever imagined.

Book 6

Tegami Bachi, Vol. 6

by Hiroyuki Asada

Published 2 August 2011
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag finds his long-lost hero Gauche Suede! But Gauche's heart is so depleted that he has no memory of his former self, and now goes by Noir the Marauder. Lag's only hope to recover the real Gauche is a special letter bullet that will convey Lag's heart to his friend. Lag's not sure how to go about writing the perfect letter, but his Letter Bee duties offer some good lessons in connecting hearts.

Book 7

Tegami Bachi, Vol. 7

by Hiroyuki Asada

Published 1 November 2011
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag has discovered that his long-lost hero Gauche Suede lost all of his heart, became tangled up in an anti-government organization called "Reverse," and is now known as "Marauder Noir." Noir’s trail leads Lag and Niche to the icy northern town Blue Notes Blues. It just so happens Niche was born here. Lag and Niche uncover her mysterious origins: a sacred underground lake...where her brethren still dwell.

Book 8

Tegami Bachi, Vol. 8

by Hiroyuki Asada

Published 7 February 2012
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag arrives at the town of Lament determined to save the heart of his fallen hero, Gauche Suede. Gauche’s rebel organization, Reverse, may be hiding out in the town’s convent. To get in, Lag will have to use his wits, and he has no idea what—or who—awaits him there. Will this be Lag’s chance to fire his Letter Bullet and restore Gauche’s memories...or the end of his career as a Letter Bee?

Book 9

Tegami Bachi, Vol. 9

by Hiroyuki Asada

Published 1 May 2012
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag’s hero, Gauche Suede, has returned to the Beehive–but not in the way Lag had hoped.While Gauche lies injured and unconscious, two mysterious government operatives show up to take him away, arousing the suspicions of the Beehive staff. What is the Amberground government trying to hide from the Letter Bees?

Book 10

Tegami Bachi, Vol. 10

by Hiroyuki Asada

Published 7 August 2012
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

With Lag out sick, Aria Link, second in command at the Beehive, takes over the job of delivering his letters. But even with Niche at her side, Aria finds that Amberground has become a dangerous place. Can she defend herself armed with nothing but a violin? Meanwhile, Lag’s illness takes a strange turn...

Book 11

Tegami Bachi, Vol. 11

by Hiroyuki Asada

Published 6 November 2012
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Largo Lloyd, ousted director of the Beehive, saves the life of a Marauder—and, in return, demands to be taken to the leader of Reverse. Will the Letter Bees finally penetrate to the heart of the rebel organization? Meanwhile, with his hero Gauche returning home at last, things are looking up for Lag…until he discovers the shocking truth about Gauche!

Book 12

Tegami Bachi, Vol. 12

by Hiroyuki Asada

Published 5 February 2013
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

As the ferocious Gaichuu Cabernet closes in on the capital of Amberground, the Letter Bees form an army to stop it. Lag is paired off with a novice Bee who informs him that he’s become a legend in the Beehive. But Lag’s reputation as the “Child of Light” won’t do him much good against the terrifying power of Cabernet…or the dark secret he’s discovered about his hero, Gauche Suede.

Book 13

Tegami Bachi, Vol. 13

by Hiroyuki Asada

Published 7 May 2013
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

While Lag and his fellow Bees fight a desperate battle against the Gaichuu Cabernet, the dark secrets of Amberground come to light. What unspeakable things did Garrard, director of the Beehive, see in Amberground’s capital? And why has former director Largo Lloyd joined the rebel organization Reverse? The answers lie in the top-secret district called Kagerou…

Book 14

Tegami Bachi, Vol. 14

by Hiroyuki Asada

Published 6 August 2013
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

As Bees and ex-Bees alike gather in Yuusari, the rampage of the unstoppable Gaichuu Cabernet continues—and heart attacks only seem to make it more powerful. As it absorbs the attacks, Cabernet keeps morphing into stranger and more sinister forms. Meanwhile, a tragic accident triggers a different kind of transformation in Niche…

Book 15

Tegami Bachi, Vol. 15

by Hiroyuki Asada

Published 5 November 2013
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Searching for the truth about Amberground, Lag heads home to the little town of Campbell. There, a woman named Sabrina Mary holds the secrets he seeks. But can he handle what he learns about his world, his government…and his own mother?

Book 16

Tegami Bachi, Vol. 16

by Hiroyuki Asada

Published 4 March 2014
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

After years of searching, Zazie is on the trail of the Gaichuu that devoured his parents’ hearts. But the hunt will force him to learn more about himself—and his past—than he ever imagined. And Emil, the kindly blind girl who runs the nearby inn, has an terrible secret…

Book 17

Tegami Bachi, Vol. 17

by Hiroyuki Asada

Published 4 November 2014
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag now knows what he has to do to save Amberground: unite the five children born on the mysterious Day of the Flicker. And his latest delivery may lead him to vital information. But meanwhile Lag has to cope with his brash new partner, Chico, who insists that nothing will stand in her way to becoming Head Bee!

Book 18

Tegami Bachi, Vol. 18

by Hiroyuki Asada

Published 1 September 2015
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag is reunited with his former boss, Largo Lloyd, now one of the leaders of the insurrection against the Amberground government. With Largo’s help, Lag uncovers long-hidden secrets about his strange birth, the cryptic memories collected from children born on the Day of the Flicker, and the nature of Amberground itself. Meanwhile, Lag’s partner Chico faces her own dark past…

Book 19

Tegami Bachi, Vol. 19

by Hiroyuki Asada

Published 7 June 2016
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

Lag returns from his training to find Amberground in chaos. The government is crumbling, revolution is underway and the sun itself is going out. The Letter Bees’ last chance is to penetrate Akatsuki, the mysterious capital of Amberground and the source of the sun’s power. But who will be the one to enter Akatsuki and forge a new world—Chico, who’s prepared to make any sacrifice for her people, or Lag, who holds out the impossible hope that every life can still be saved?

Book 20

Tegami Bachi, Vol. 20

by Hiroyuki Asada

Published 7 March 2017
A New York Times best-selling sci-fi fantasy series with heart.

Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected.

What is the truth behind Amberground? As Lag and his friends descend to the center of their twilight world, they learn more than they ever dreamed possible. With civilization collapsing and the end of the world at hand, the time has come for Lag to lead the people of Amberground to hope and light at last.