Sammy is spending her school detention time helping out at St Mary's church - boring, but peaceful, she reckons. Unfortunately not. A trio of singing nuns arrive in a motorhome, and prepare to turn the whole place upside down! Plus Father Mayhew's cross has disappeared, and his main suspect is the bad apple who's working out her detention - none other than Sammy Keyes. It's up to Sammy to find the real thief, before Father Mayhew tells the police...

A Hollywood actress, who had been competing with Sammy's mother for an important role, is murdered, but thirteen-year-old Sammy and her friend Marissa are on the case.

Thirteen-year-old Sammy's penchant for speaking her mind gets her in trouble when she involves herself in the investigation of a robbery at the "seedy" hotel across the street from the seniors' building where she is living with her grandmother.

Seventh-grade sleuth Sammy Keyes investigates mysterious happenings at a local art gallery.

This Halloween is more than just tricks and treats--it's deadly serious.
 
It was supposed to be a simple ding-dong ditch. A dare to give them bragging rights. But as Sammy and her friends sneak up to the spookiest house in town, they get scared witless by a skeleton, and then witness something frightening enough to make even Sammy scream. 

Things have taken a scary turn at school, too, with horrible Heather spreading embarrassing rumors about Sammy. Sammy devises a plan to expose her, but it's going to take a deceptive disguise, some good friends, and a lot of guts to pull it off...

 
Praise for the Sammy Keyes series:
 
“If Kinsey Millhone ever hires a junior partner, Sammy Keyes will be the first candidate on the list. She’s feisty, fearless, and funny. A top-notch investigator!” —New York Times bestselling author Sue Grafton
 
“The sleuth delights from start to finish. Keep your binoculars trained on Sammy Keyes.” —Publishers Weekly
 
“The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)” —Midwest Children’s Book Review

While celebrating the New Year with a friend, Sammy encounters a mystery involving an elderly neighbor, a pioneer cabin, and a century-old family feud.

After a dog she is watching disappears from a city parade and the owner receives a ransom note, thirteen-year-old Sammy must use her detective skills to solve the mystery.

All Sammy wants to concentrate on is her softball team - they're in contention for the Junior Slugger's Cup and there's work to be done. Particularly as Heather Acosta (Sammy's rival) brings new meaning to the term 'foul ball' as she tries to get Sammy kicked off the team. Then Sammy is thrown a curve ball - out at the mall one day, a flustered girl begs her to watch her bag for her, then disappears. It's only then that Sammy realises the bag contains . a baby! Sammy sets out to search for her, and is led into situations that make softball look like child's play.