Just as Nancy's gearing up the help plan the Mahoney Library's seventy-fifth anniversary celebration, the beautiful old clock in the library is stolen. Soon Nancy learns that it is actually what's inside the clock that is more valuable than the clock itself. Can she catch the thief before the clock stops for good?

Stop the Clock 2007, Simon & Schuster Childrens Books, London

ISBN-13: 9781847381149

Mass-market paperback

Stop the Clock 2005, Aladdin Paperbacks, New York, NY

ISBN-13: 9780689873362

Trade paperback