Crimson Shadows (Crimson #3)

Mikal Baldevar - The legendary living Philosopher's Stone and a murderous sociopath! Simon Baldevar and Meghann O'Neill have twins, Elizabeth and Mikal. Elizabeth is a mortal, loving, and normal child while Mikal is his father's son. Simon and Meghann separated in order to keep their children safe; he to an isolated Highland island with their vampiric son and Meghann to New York to raise their human daughter. Eighteen years later, despite Simon's best efforts to raise his son, there are serious issues. In fact, Mikal has absolutely no sense of right or wrong, nor any sense of pleasure or pain. He's a true sociopath in every sense of the word. To Simon's dismay, Mikal leaves home on a murderous rampage. Simon originally got Meghann pregnant to produce the legendary living philosopher's stone, knowing that his vampire child would possess powers that other vampires could only dream of, including the most fearful of all, Mikal is able to walk in daylight. Now, Simon Baldevar is faced with the most horrifying of choices; be a loving father or a ruthless killer. Either way, he must face what he has unleashed upon the world.