Walking the plank on a pirate ship is a death sentence, unless you're Miles Thackray. With the seafaring magic at his command, he refuses to fall…and awakens a soul within the plank itself to aid him in his desperate secret mission. Besieged by monstrous pirates and actual monsters of the ocean depths, Miles and the plank join forces in a high-stakes gamble that could resurrect a long-lost treasure…or send all their hopes and longings plunging to the bottom of the deep blue sea.