"A wave of near drownings along the Welsh coast can only mean one thing: the morgenau, Welsh sirens, have returned to the Ll¿n Peninsula. Myrhydion seizes the chance to prove himself as future king. Instead, he falls under the spell of a cunning underwater sorcerer. Myrhydion fights to free himself, while keeping up the fiction of his human identity. As he loses more and more of his power to the sorceror, Myrhydion risks more than the crown. He could lose the life hés created on land with Olly. As Myrhydion and Olly struggle to protect the people of the Ll¿n, Myrhydion faces an impossible choice. Surrender the magical powers that are his only defense against the machinations of the former king, his evil grandfather, or risk the lives of everyone he cares about. Rapidly running out of magic, options and friends, Myrhydion knows that only a king can win this battle - and Myrhydion is prince of nothing"--Back cover.