Geronimo Stilton, secret agent

Subjects

• Stilton, Geronimo (Fictitious character) -- Juvenile fiction.
• Mice -- Juvenile fiction.
• Undercover operations -- Juvenile fiction.
• Espionage -- Juvenile fiction.
• Mice -- Fiction.
• Undercover operations -- Fiction.
• Espionage -- Fiction.
• Spies.
• Humorous stories.