Beast Quest: Arax the Soul Stealer by Adam Blade

Desperately, Tom threw his head to one side to avoid it. The leather cord snaked past him and sank its barbs deep into the Beast's heart. With a roar of despair, Arax flung his wings wide-Tom was free! He fell to the ground,rolled to his feet and jumped clear. The Beast raged blindly up and down, the whip dragging after him as he tried to pull it out of his chest.