On March 11, 2011, the Japanese fishing trawler, Hoshi Maru accidentally hauled up something deadly into its live-fish hold. The crew, having discovered their mistake, raced toward the harbor in the hope that they might survive.

They never made it.

Presumed sunk by the tsunami that ravaged the coastline of Japan, its crew were declared dead.

Seven years later, the shipwreck washed up on Cannon Beach, Oregon. By the time the US Department of Fish and Wildlife arrived to investigate, people in the nearby towns had started to die in terrifying and inexplicable ways.

Sam Reilly will need to discover what really happened on board the Hoshi Maru – and why all clues point to the Legend of King Arthur…