By Rain & Rot - The Forgotten Heirs

This time, for the first time, he remembered.
Milo, still struggling with the weight of his complicity in Veirbosian mass murders, wakes with memories of another life-memories that give him a new, urgent purpose: he must find Ariame, the soul-bonded mate he's only known in dreams.
Torn between the past and present, between logic and emotion, Milo is consumed by a desperate need to reconcile his guilt and find meaning in a world where nothing is certain.

Joined by Jace, whose thirst for power and distraction threatens the things she holds most dear, Milo, Ima, Bellat, Ereta, Leelin, and Chegg set out on a journey to explore the mysterious warm-water world they call Bathtub. Together, they venture across worlds and within themselves, confronting questions of freedom, responsibility, and choice. As they navigate this new reality-where Ascension, power, time, and the nature of existence itself are called into question-their bonds will be tested by both external threats and the deepening complexity of their bonds with each other. With new allies, enemies, and the ever-present danger of Lordly tyranny, the group must decide: What does the future hold, and what are they willing to do to secure their right to build it for themselves?
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Set on a world of warm seas and hidden caves, the third installment of the Forgotten Heirs series is a gripping, existential exploration of love, purpose, and the chaos that arises when freedom is at stake.