Book 1

The Show Must Go On!

by Kate Klise, Sarah M. Klise, and M Sarah Klise

Published 10 September 2013
When Sir Sidney, a kindly old circus owner, becomes too tired to travel with his show, he places a Help Wanted ad in the newspaper. Enter Barnabas Brambles: "I have a degree in lion taming from the University of Piccadilly Circus." But does Leo the lion need taming? Will Elsa the elephant still get her gourmet peanuts? And what will Brambles say when he discovers Bert and Gert-two mice who travel with the circus on popcorn cleanup patrol? Brambles has big plans: More cities! More shows! No more free popcorn. Soon he's made a big mess of Sir Sidney's Circus, but Leo, Elsa, Bert, Gert, and the rest of the performers agree: The Show Must Go On! Black and white line drawings throughout.

Book 2

As the performers in Sir Sidney's circus discover that friendship and teamwork are more important than winning a trophy for The Greatest Star on Earth, circus mice Bert and Gert write a book on how to be kind for rotten ringmaster-in-training Barnabas Brambles to read.

Book 3

The Circus Goes to Sea

by Kate Klise

Published 9 September 2014
Many surprises are in store when Miss Flora Endora Eliza LaBuena LaPasta invites Sir Sidney's Circus to travel and perform aboard her elegant ship, the SS Spaghetti.

Many surprises are in store when Miss Flora Endora Eliza LaBuena LaPasta invites Sir Sidney's Circus to travel and perform aboard her elegant ship, the SS "Spaghetti." Book #3

Book 4

Pop Goes the Circus!

by Kate Klise

Published 5 May 2015
Bert the circus mouse has gone missing! The members of Sir Sidney s Circus figure he s nearby, sulking after an argument with his sister, Gert. Little do they know that he s been carried away by a rogue balloon. Meanwhile, in a faraway state, Flora LaPasta is tired of being ignored as her parents prepare for a new baby, so she mails herself to Sir Sidney s Circus in protest.

Book 5

Can you keep a secret?
Everyone has a secret. But sometimes a little secret can become a big problem.

That's what happens when circus mouse Gert's secret pen pal, a pig named Pablo, runs away to join Sir Sidney's Circus. Pablo doesn't want to be sold to Prinkle's Pork Chops. Farmer Farley doesn't really want to sell Pablo, either, but he needs money to save his farm.

When the New Pork Times announces a pig race with a five-thousand-dollar prize, the members of Sir Sidney's Circus hope they've found a way to save Pablo and Farmer Farley's farm, too.

The race is on in Secrets of the Circus.