By day Rémy Brunel is a daring circus acrobat, by night she is an equally talented jewel thief currently assigned to steal a famous diamond in Victorian London--but when the theft goes wrong she finds herself allied with a young policeman as they try to find the elusive gem.

Frank and Joe try to prevent the theft of a valuable collection of diamonds from a show.

Squishy and her twin stepsisters, Vee and Jessie, are on the trail of a mystery; it starts with "Boring Lady" working in her office across the street at 2:57 in the morning, continues with the trashing of Mr. Hinkenbushel's apartment next door, and apparently involves illegal diamonds--and Squishy becomes convinced that Mr. Hinkenbushel is the diamond smuggler, only none of the grownups believe her.

The Moonstone, a yellow diamond looted from an Indian temple and believed to bring bad luck to its owner, is bequeathed to Rachel Verinder on her eighteenth birthday. That very night the priceless stone is stolen again and when Sergeant Cuff is brought in to investigate the crime, he soon realizes that no one in Rachel's household is above suspicion. Hailed by T. S. Eliot as "the first, the longest, and the best of modern English detective novels,"...

Named after a character in a Shakespeare play, misfit sixth-grader Hero becomes interested in exploring this unusual connection because of a valuable diamond supposedly hidden in her new house, an intriguing neighbor, and the unexpected attention of the most popular boy in school.

A fifth-grader with a photographic memory and her friend Eric help solve the mystery of the stolen diamonds.

A thief is stealing priceless diamonds in Gotham City, and the cops are after Catwoman for the crime--but for once she is innocent, and it is up to Batman to find the real culprit.