Lilly is a ten-year-old worrywart. To keep her concerns at bay， she diligently and fervently lists them in a worry book. Her globe-trotting scientist-parents don’t worry about anything. When they learn of a rare sighting of the frangipani fruit fly， they set sail for the fabled Shipwreck Islands. Since water is her greatest fear， Lilly stays behind with her eccentric， librarian great-uncle. Then news comes that the scientists are shipwrecked， and Lilly must overcome her fear of the sea， find the hidden island， and outsmart a bunch of treasure-hungry pirates to save her parents. Rob Shepperson’s detailed， action-packed pencil illustrations are as wonderfully good-humored as the story.