One False Note
One False Note is the second book in "The 39 Clues" series. It is written by Gordan Korman, and was published by Scholastic on December 2, 2008. Following the events of "The Maze of Bones", the protagonists Amy and Dan Cahill learn about Mozart and travel to Vienna, Austria to search for the second clue in the 39 Clues competition. "One False Note" entered the Children's Books New York Times Best Seller list at number one on December 21, 2008 and stayed on the list for children's chapter books for 12 weeks.
Kyle Craig
Kyle first appears as an FBI agent in "Along Came a Spider" continuing to "Violets Are Blue" He becomes a friend of Alex Cross, the series protagonist, helping him out on his cases to capture killers, even using his FBI connections to give him resources. By the novel "Roses Are Red", a new serial killer called the "Mastermind" is causing trouble with a series of bank robberies and murders, one of which involves the killer murdering Alex's girlfriend and partner, FBI agent Betsey Cavalierre. By the end of the novel, it is revealed that Kyle Craig himself is the serial killer, but no one knows the truth. In "Violets Are Blue", Craig, as the Mastermind, continues to taunt Alex and later reveals himself at the end of the novel. When he tries to kill Alex, he is defeated and arrested by Alex himself. During his interrogation, Craig reveals that he killed multiple times before during the book series and that he killed Betsy because she was onto him and that her love for Alex was growing stronger and coming between him and Alex. After his trial, Craig is sent to prison. From books "Four Blind Mice" to "Double Cross", Craig is held at the supermax prison, ADX Florence. He is visited by Cross only when he has available information on certain cases. It's also revealed in Cross Fire he has ASPD(Antisocial Personality-Disorder) and boasts an IQ of 149