The journey to the Hidden Sea begins! At the end of the Solarium War, Rocketo Garrison is a broken man, his mapping abilities useless. He takes a lowly job at Perdition’s Point lighthouse but his lonely, self-imposed exile ends when former partner, Spiro Turnstile, suddenly appears. Spiro has the inside track on a rare treasure thought to be in The Hidden Sea. But unbeknownst to him, Spiro has been followed by members of The Hand, a secret criminal syndicate he has betrayed. A citywide chase through Sansebo ends when our hero is thrown unconscious into the Great Atlas Ocean.