* The Case of the Missing "I" (1983)
* The Day I Robbed the Bank (1988)
* The Case of the Buried Bones (1990)
* The Ghost of the Great Lost Whale (1993)
* The Case of the Drowned Sailor (1995)
* The Case of the Stolen Violin (1997)
* The Day I Met Einstein (1999)
* The Case of the Missing Dinosaur (2001)
* The Case of the Flying Saucer (2003)
* The Case of the Secret Message (2005)
* The Day I Went to Mars (2007)
* The Case of the Time Machine (2009)
* The Day I Became Invisible (2011)
* The Case of the Mysterious Island (2013)
* The Day I Flew a Plane (2015)
* The Case of the Hidden Treasure (2017)
* The Day I Became President (2019)
* The Case of the Disappearing Girl (2021)
Awards:
* Edgar Award for Best Juvenile Mystery (1990)
* Agatha Award for Best Children's Mystery (2001)
* Anthony Award for Best Children's Mystery (2003)