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.

Binding: Paperback;368 pages; Publisher: Penguin Random House Children's UK; Classification: Children's Books; Weight: 386 g; Dimensions: 130 x 197 x 24

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