Timmy Failure: Now Look What You've Done is the second book of Timmy Failure.
Timmy Failure is at Maury's Museum of World Records. Timmy is offended by the museum displaying Carl Kobalinski as the smartest man in the world. Timmy is in frustration and tries to bring down the sign, but falls, breaking his leg in the process. The sign however, is dormant. Timmy is later sitting in bed, working on his memoirs.
To solve the case and retrieve justice, Timmy purposely acts like a bad kid so that he could go the academy and solve the mystery.a