Geronimo Stilton sets out to crack the secret hidden in Mouse Island's most famous painting, the Mona Mousa; and in the second story, Geronimo and his grandfather pack up the cheese-colored camper and travel to a remote spot on the island so Grandfather could write his travel book.
Using their code-breaking skills, four middle-schoolers solve the mystery of the eccentric man who draws stick figures on his second-floor bedroom window.
Cody and the other members of the Code Busters Club take a trip to the Winchester Mystery House. Back matter includes keys to the codes and solutions to the coded messages that appear throughout the text.
The Code Busters are competing in their school's science fair, but when a mysterious drone ruins their project, it is up to sixth grader Cody and her friends to figure out who is responsible. Back matter includes keys to the codes and solutions to the coded messages that appear throughout the text.
When Cody's younger sister disappears in Magicland, it is up to the Code Busters to solve puzzles and messages to find her. Back matter includes keys to the codes and solutions to the coded messages that appear throughout the text.
Present information on how to encipher and decipher cryptograms, focusing on modern forms of cipher solution, and features 166 specimen codes to solve, with answers.
Amy and Dan find themselves in Vienna, where they search for clues while evading their enemies, and attempt to discover the truth about their famous ancestors, Wolfgang Amadeus Mozart and his sister Nannerl.
While in her second year at Explorer Academy, Sailor discovers her older sister's sudden disappearance may be linked to an illegal and deadly animal-trafficking ring and must choose to embrace her destiny to find the truth.
Amy and Dan find themselves in Vienna, where they search for clues while evading their enemies, and attempt to discover the truth about their famous ancestors, Wolfgang Amadeus Mozart and his sister Nannerl.
