The Riddle of the Rajah's Ruby

When Nick and Katie's friends, Sophie and David, inherit a mysterious cursed ruby it causes all sorts of trouble for them. It's up to Nick and Katie to rescue them. Their explorations take them to a hidden house and beautiful temple but will the children escape from the clutches of Sophie and David's captors before it's too late? 

Author: Enid Blyton

Publisher: Bounty

Released Date: 2013

ISBN: 9780753725559