Geronimo Stilton, crusading news reporter and editor of The Rodent's
Gazette, has been working too much and is in desperate need of a break.
He is getting sleepy, very sleepy, but he can't actually fall asleep.
Geronimo's cousin Trap tells him about a specialist, the Great Ratswami,
who hypnotizes mice to help them relax. Shortly after Geronimo's meeting
with the hypnotist, New Mouse City is plagued by a crime wave and
Geronimo seems even more tired than ever! Something weird is going in
New Mouse City, and the totally shocking answer will become front-page
news!