Novel 1 The Legend of the Buried Treasure of Koshu Released date: May 15, 2005

Novel 2 Murder Symphony Released date: March 15, 2006

Novel 3 A Challenge Letter to Shinichi Kudo: Prologue Until Goodbye Released date: October 15, 2006

Novel 4 Shinichi Kudo Returns ~Confrontation with the Black Organization~ Released date: December 19, 2007

Novel 5 The Witch of Ejinbara Released date: July 11, 2008

Novel 6 A Challenge Letter to Shinichi Kudo ~The Mystery of the Legendary Bird~ Released date: April 16, 2011

Novel 7 A Challenge Letter to Shinichi Kudo ~Murder in the Court~ Released date: September 16, 2011

Novel 8 A Challenge Letter to Shinichi Kudo ~Love Formula Murder Case~ Released date: December 14, 2011

Novel 9 A Challenge Letter to Shinichi Kudo ~Showdown! Shinichi Kudo vs Heiji Hattori~ Released date: April 12, 2012