Dark Awakening New World

"Your destiny awaits across the stars," Ell-rom's mother told him. "The seer foretold your future. You will live, and you will thrive, and you will be safe."
The seer's prophecy has come true. Ell-rom and his sister are safe, surrounded by people who care for them and want to help them heal, which is in stark contrast to where they came from. On Anumati, they were considered abominations because of their mixed heritage. As half gods and half Kra-ell, they would have been eradicated if ever discovered.
But even as he clings to that thought like a talisman against the darkness, he can't shake the lingering sense of unease, the feeling that something lurked in the shadows of his past, something dark and dangerous that is much worse than his inability to tolerate the taste of blood.
What is it about him and his sister that he is not supposed to let anyone see?