Geronimo's Valentine (Geronimo Stilton #36)

Geronimo Stilton #44: The Giant Diamond Robbery

Geronimo Stilton #23: Valentine's Day Disaster

Geronimo Stilton #34: Geronimo Stilton, Secret Agent

Geronimo Stilton #57: The Stinky Cheese Vacation

Geronimo Stilton #54: Get Into Gear, Stilton!

Geronimo Stilton #24: Field Trip to Niagara Falls

Geronimo Stilton #40: Karate Mouse

Geronimo Stilton #48: The Mystery in Venice

Geronimo Stilton #59: Welcome to Moldy Manor