Isle of 100,000 Graves

Summary

Five years ago, little Gwenny''s father found, inside a bottle, a map with instructions on how to reach the mysterious Isle of 100,000 Graves and its legendary treasures — and then he vanished. Now Gwenny, having stumbled across another bottle-shipped map, enlists the dubious help of a shipful of pirates, sets out to find the island, and her long-lost dad.