Two Sides of the Moon

"My mother is the human, Captain Amadahy, and my father is an assassin and a King, Draven of the Moonshadow elves, and I am not like either. But beware my wrath for I am of both."

Or:

The story of a boy with elven and human blood, a girl with an inside source of magic, a Moonshadow elf assassin who can't and won't kill, a "step-prince" with a sky orb, and a child who talks to animals and has a glow toad for a friend.