#1 The Case of Hermie the Missing Hamster
#2 The Case of the Christmas Snowman
#4 The Case of the Spooky Sleepover
#5 The Case of the Stolen Baseball Cards
#6 The Case of the Mummy Mystery
#8 The Case of the Great Sled Race
#9 The Case of the Stinky Science Project
#11 The Case of the Marshmallow Monster
#12 The Case of the Class Clown
#13 The Case of the Detective in Disguise
#20 The Case of the Race Against Time
#26 The Case of the Double-Trouble Detectives
#29 The Case of the Snowboarding Superstar
#32 The Case of the Groaning Ghost
Super Special #1 The Case of the Buried Treasure
Class Clown has a bit of cover wear; otherwise, it and the other books are in very good condition. The pages of some books have some age-related yellowing, but the pages of all the books are tight, clean and in good condition.