More than 18 million Geronimo Stilton books in print!
I was just minding my business at home when I got a telephone call.
It was my uncle Samuel S. Stingysnout, inviting the whole Stilton family to creepy, faraway Penny Pincher Castle for a big surprise.
Moldy mozzarella I'm not much of a traveling mouse, and I hate surprises.
But Thea, Trap, and Benjamin were going, so I couldn't say no.
I could tell this was going to be one super-spooky trip!