Biggles And The Lost Sovereigns: Captain W.E. Johns

In 1942, when Singapore was being evacuated prior to the Japanese invasion, 20,000 sovereigns were loaded on the schooner Vagabond, but after putting to sea, the boat was never seen again. However, a dead native has now been found in his canoe in the Mergui Archipelago, wearing a necklace made up of the same sovereigns. Biggles, with Ginger and Bertie, befriend McDonald, the captain of the ship that found the dead native and with the help of Chintoo, a local man, they begin the search for the Vagabond. But there's corrupt officials, storms, Chinese pirates and a mad Japanese airman in their way...