Download or read book Claudia and the Mystery At the Museum (The Baby-Sitters Club Mystery #11) written by Ann M. Martin and published by Scholastic Inc.. This book was released on 2014-09-30 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: While visiting Stoneybrook's new museum, Claudia is horrified to learn that someone has stolen some priceless coins and replaced them with forgeries.