When Creepella tries to deliver Blobbina a love letter from Gorgo, the monster in the moat of Cacklefur Castle, Blobbina has disappeared; Creepella and Billy Squeakspeare head to Horrorwood to search for Blobbina.

A mysterious old friend of Grandpa Frankenstein (he's a vampire) shows up one night on the doorstep of Cacklefur Castle. His ancient castle has been infested by strange and troublesome monsters and ghosts, and he's afraid he'll have to move out because of them.

Breakout star Creepella von Cacklefur is back in another fur-raising adventure! The fair has come to Mysterious Valley! Creepella is looking forward to a fun, thrilling day of rides and games with her family and friends. But one spooky rollercoaster seems to be making everyone who rides it disappear! Creepella is determined to get to the bottom of the mystery -- but what will happen when she rides the coaster herself? Praise for Geronimo...

It's always a fur-raising adventure with Creepella von Cacklefur! The famouse opera singer Violetta von Cacklefur is in Gloomeria to perform at the Royal Mousetropolitan Theater! But the mischievous phantom of the theater has anold grudge against her. It's up to Creepella and Geronimo to track him down in the theater's spooky basement... before the curtains rise and he ruins the show! Geronimo Stilton is the publisher of The Rodent's Gazette,...