The Pearl of Price: A Parker Pyne Story (Parker Pyne Mysteries)

Previously published in the print anthology Parker Pine Investigates.

A party of tourists is traveling from Amman to a camp in Petra. The group includes an American magnate and his daughter Carol. When Carol loses one of her earrings, Jim Hurst, an ex-convict, becomes a prime suspect. But is he really guilty, and can Parker Pyne shed light on the theft?