Call of the Fathoms (Volume 4)

Summary:

The city of Tau was a secret for a long time. Until now. As a genetic experiment and bodyguard of one of the primordial beings, Alexia has always known her purpose: to protect her primordial being and ensure that the city of Tau remains hidden in the depths of the ocean. And to destroy all Undines who try to thwart her in this endeavor.

Fortis always knew he would die young. That's why he isn't afraid. Fate cannot be changed, not even by the warrior who has captured his attention. After all, he knows the hour and the circumstances of his death.

He tempts her to hunt him down, but he hadn't expected to enjoy their battles so much. However, he must convince this warrior to help them – even though she hates his ways.

When Alexia discovers that a great deception is taking place in her own city, she realizes that helping the Undine might not be so difficult after all. Or even falling in love.