Title: The Crossing of Ingo (Ingo #4)
Description: No human has ever made the Crossing of Ingo - the most dangerous journey young Mer have to face. Sapphy and Conor have been chosen for this epic challenge, and the future of both Air and Ingo depends on their success. But Ervys, his followers and new recruits, the sharks, are determined to stop them - dead or alive.
Subjects: Mermaids, Juvenile fiction, Mermen, Interpersonal relations, Brothers and sisters