Dark Stranger The Dream by I. T. Lucas

Since the dawn of human civilization, two warring factions of the immortal descendants of gods have been secretly shaping its destiny. Leading the battle from his luxurious L.A. high-rise, Kian is surrounded by his clan, and yet he’s alone.
As the descendants of a single goddess, clan members are forbidden to each other, and since the only other immortals are their sworn enemies, Kian and his kin have long been resigned to a lonely existence and eventual extinction. That is until his sister, a neuroscience professor and a researcher of paranormal abilities, makes a game-changing discovery.

Syssi’s premonitions are tricky. They foretell catastrophes, but when she gets a job as a research assistant, they fail to predict the thrilling yet terrifying turn her life is about to take. Turns out that her new boss is the immortal daughter of a goddess, and her boss’s imposing brother is the mysterious stranger who’s been starring in her dreams.

An Amazon top 10 All-Star, I. T. Lucas is one of the most popular authors in Kindle Unlimited.