Travelling with him is his loyal bodyguard, Arent Hayes, who is determined to prove his friend innocent, while also on board are Sara Wessel, a noble woman with a secret, and her husband, the governor general of Batavia. But no sooner is their ship out to sea than devilry begins to blight the voyage.

A strange symbol appears on the sail. A dead leper stalks the decks. Livestock are slaughtered in the night.

And then the passengers hear a terrible voice whispering to them in the darkness, promising them three unholy miracles. First: an impossible pursuit. Second: an impossible theft.

Third: an impossible murder. Could a demon be responsible for their misfortunes? With Pipps imprisoned, only Arent and Sara can solve a mystery that stretches back into their past and now threatens to sink the ship, killing everybody on board…