When Geronimo is invited to Creepella von Cacklefur's spooky castle, he is surrounded by the gloom of the castle as well as by Creepella's creepy family!
Geronimo, Thea, and Trap are exploring a mysterious old castle built by the founder of New Mouse City. Can they unlock all its rooms and discover its secrets?
"Geronimo, Thea, and Trap were invited to a spine-tingling mystery dinner at Cacklefur Castle! There they find spiders, bats, and ... something slimy! Can Geronimo solve teh mystery before he is frightened out of his fur?"--Back cover.
When Geronimo Stilton, editor of "The Rodent's Gazette," gets a mysterious phone call from his cousin Trap, he takes Thea and Benjamin along to Transratania, believing that Trap is awaiting rescue somewhere in the castle of Count von Ratoff.