<DIV>The recovery of the magnificent gem in Lord Attenbury's dazzling heirloom launched a shell-shocked young aristocrat on his career as a detective in 1921. Now it is 1951: Lord Peter Wimsey has just shared the secrets of that mystery with his wife, detective novelist Harriet Vane. Then the new Lord Attenbury, grandson of Lord Peter's first client, seeks Wimsey's help to prove who owns the gigantic emerald. It will be the most challenging case he has ever faced.</DIV>