Risn, owner of “The Wandering Sail”—a jewel of the Tylen fleet—accepts Navani Holin’s business proposal. Queen Urithiru wants to send a research expedition to Akina, the legendary capital of the dead Aymea. Risn has her own interest in this journey: her larkin is fading day by day, and she hopes that back home Chiri-Chiri will become better. Together with the tylenese, the journey includes the windrunners Lopen and Uyo, the follower of Rushu, and the daughter of the Stone Strun.