The Riddle of the Rajah's Ruby (Enid Blyton's New Adventure)
By Enid Blyton.
Description
When Nick and Katie read in the newspaper that some friends of theirs have inherited a mysterious, cursed ruby, they're eager to hear all about it. But before they can arrange to visit them, Sophie and David are kidnapped. Nick and Katie resolve to tackle another riddle and find their friends. - from Amzon
ISBN(s)
0006945759, 9780006945758
