The northern waters hold dark secrets, ones Wax needs to uncover if he's going to get one step closer to the Wound and its throne. Before such lofty ideas can be set in motion, though, Wax and his guardians have to find a ride upriver, a task made harder thanks to cowardly captains and murderous fiends. Sly eyes and quick feet grab an unexpected opportunity to travel, but Wax soon finds their chosen vessel might have more danger than the rivers...