Thane’s father and sister have been missing for the past ten waves, and no one has been able to find them since. Thane searches for them and tries to decipher how they disappeared. However, his mother's constant attempts to make him King end his search. Thane gets preoccupied with a Selection, a war, and a relationship that his mother coerces him into participating, but he tries to reject. Will he succumb to the pressure of his title or rise to the occasion and keep looking for his family in spite of everything? Thane's Promise is for the fans of Cinderella, The Selection by Kiera Cass, and Pride and Prejudice. It is a fantasy set in a beautiful Kingdom with elements of space and time travel. Thane's Promise has bits of dark academia, drama, romance, science fiction, and fantasy.