ISBN-13: 9780141362038 / Angielski / Miękka / 2016 / 368 str.
When Fifteen-year-old Wulliam's father is possessed by a dark spirit, Wull hears that a cure for Pappa's illness lurks in the belly of a great sea-dwelling beast known as the mormorach, and so he embarks on an epic journey down the river that his family has so long protected - but never explored.