the dark leaves.

Harry had taken one step toward it when a slithering sound made him freeze where he stood. A bush on the edge of the clearing quivered.... Then, out of the shadows, a hooded figure came crawling across the ground like some stalking beast. Harry, Malfoy, Amelia, and Fang stood transfixed. The cloaked figure reached the unicorn, lowered its head over the wound in the animal's side, and began to drink its blood.

"AAAAAAAAAARGH!"

Malfoy let out a terrible scream and bolted -- so did Fang. The hooded figure raised its head and looked right at Harry -- unicorn blood was dribbling down its front. It got to its feet and came swiftly toward Harry -- he couldn't move for fear. 

Then a pain like he'd never felt before pierced his head; it was as though his scar were on fire. Half blinded, he staggered backward. Amelia shouted standing in front of Harry moving her arms trying to confuse the cheater but it wasn't working. She was going to have to fight. Amelia knew that what she was about to do was dangerous and very stupid but it was the only thing she could do. The creature was too big to fight as a human.

Amelia concentrated as hard as she could and slowly started to transform. Her bones made an awful snapping sound as they broke and rearranged themselves. Amelia knew that without practice turning into something bigger than you without working your way up in size could be agony, but she had to do something.

Amelia was a full-on wolf. Her fur was a silvery white and her eyes a deep blue with sharp white fangs pokeing out of her mouth. The creature lunged at her. A fight ensued. Incoherent yelping howling the sound of flesh being scratched and bitten, and the rustling of leaves filled Harry's ears. He heard hooves behind him, galloping, and something jumped clean over Harry, charging at the figure.

The pain in Harry's head was so bad he fell to his knees. It took a minute or two to pass. When he looked up, the figure had gone. A centaur was standing over him, not Ronan or Bane; this one looked younger; he had white-blond hair and a palomino body.