Prince of Thorns — Mark Lawrence

When he was nine, he watched his mother and brother killed before him. By the time he was thirteen, he was the leader of a band of bloodthirsty thugs. By fifteen, he intends to be king...

It's time for Prince Honorous Jorg Ancrath to return to the castle he turned his back on, to take what's rightfully his. Since the day he was hung on the thorns of a briar patch and forced to watch Count Renar's men slaughter his mother and young brother, Jorg has been driven to vent his rage. Life and death are no more than a game to him-and he has nothing left to lose.

But treachery awaits him in his father's castle. Treachery and dark magic. No matter how fierce, can the will of one young man conquer enemies with power beyond his imagining?