Sue and her brother, Eddie, are visiting London when they run into a little problem. They can't find their tour group. Still, there's no reason to panic. No way their tour guide would just leave them. All alone. In a gloomy old prison tower. No way they'd get locked inside. After dark. With those eerie sounds. And a strange dark figure who wants them...dead.

This book is part of a book series called Goosebumps .

There are 160 pages in this book. This book was published 2010 by Scholastic US .

Stine lives in Manhattan with his wife, Jane, and their son, Matthew.