Oliver is a cabin boy on a passenger ship, spending his days being bossed around by Captain Garrick. However, there is more to his world than the quaint ship. Winged people, with voices more powerful than any sound a human could make, have their existence traced back to ancient Greek myths about the Argonauts and Odysseus. These myths, and their strange powers, are the reason they are hunted, and more people than Oliver thought are involved in this deadly trade...