Captain Billías Craig is considered mad for setting out on a quest to find the mysterious, forsaken treasure chamber. He has not been on a long voyage since his youth, and never wished to partake in another after it. Which arouses many questions amongst his friends. Meanwhile, he and his crew are well on their way when they are suddenly joined by a strange boy that seems to have appeared mysteriously from another world. Written in the perspective of Daniel Carboni, an ordinary boy who, just visiting his grandfather in England, suddenly finds himself aboard a magnificent ship. Before he knows it, he is on his way to a chamber full of forgotten treasure. But is that really why they are on that mission, or is the captain hiding something?