Ring of the Dragon by Kayelle Allen

Across alien landscapes and against treacherous foes, one man fights for the love that defines him. For millennia, the immortal King Pietas and General Cyken have fought as one—Light and Shadow, their love igniting the battlefield with passion and fury. But when Pietas's rage fractures their world, Cyken walks away, leaving a chasm that echoes through eternity. Now, as Cyken seeks solace in another man's embrace, Pietas embarks on a perilous quest across the alien landscape of Felidae. He must confront not only the treachery that lurks in the shadows, but also the demons of his own heart. With each step, he risks everything to prove he is still Cyken's perfect choice. Yet, as Pietas battles fierce adversaries and navigates the tangled web of love and loyalty, he faces a haunting truth. Will his quest reclaim Cyken or drive him deeper into another's arms? In a universe where shadows dance with light, can one king find his way back to the heart of his beloved? For without Cyken, he cannot walk into eternity alone—he needs his shadow to balance his light. A quest to find a single horse on a planet with millions of them. Filled with adventures and mishaps that only a snarky immortal with a hair-trigger temper could create.

Origin of Pietas: Bringer of Chaos by Kayelle Allen

SPSFC 2022

Traitors stripped the immortal king Pietas of everything. Now, marooned on a deserted planet, his only hope of finding his people lies with the human who imprisoned him. That doesn't mean Pietas will humiliate himself by asking for help. Enough is enough. He's already died a thousand times. But if he fails, he will doom his people to eternal exile, and end his own immortality. Their ultimate salvation relies on the one thing he swears does not exist. The honor of a human...