Ken Roberts is the author of several popular books for young readers, including Hiccup Champion of the World, Crazy Ideas, Pop Bottles, Nothing Wright, Past Tense (shortlisted for a Governor General’s Award) and two highly praised previous Thumb books — The Thumb in the Box and Thumb on a Diamond (Cooperative Children's Book Center Choice, SSLI Honor Book, Horn Book Fanfare Top Ten List). Ken is chief librarian of the Hamilton Public Library. He lives in Hamilton, Ontario.