Kai hadn't felt the real force of his fall after the rope has broken, the adrenaline had stolen the pain in places it had come up and with his pack removed, tossed to the side in favor of just his knife and his mask, he ran his fingers over the smooth wooden surface and focused on each and every breath being taken in. Any other time it had brought the boy back from his panic and fear but now it only made it worse.

Putting a foot under him, Kai pushed to rise and help against whatever it was that was being attacked. There were wings, a bird obviously, and that wasthe boys target. All at once his leg gave out and again returned the boy to his stomach with a jaw clenching feeling of pain shooting up his leg.
It was not broken, that much he knew, but it was likely twisted in the fall. It ached noticably as the moment dragged on forever. Wincing in pain, it was all he could do to wrap a hand around where it hurt and try to focus on his surroundings. 
The abyss was full of danger and an injury could cost him everything.

[i]No. No, no no NO. Not like this! I won't be dead weight. I won't [/i]

The sound of wings caught his attention and the adrenaline was quick to come, the boys mind blocking out the pain as best he could while a wild sense of survival overloaded him in that moment of weakness. It was fight or die and too much rode on this path down to lay here and die.
With his dominant leg he sprung, eyes bleary from the tumble. Whatever it was that had startled him it had wings, big ones. It must be that bird!

Carving knife leading, Kai tried to stab whatever it was right in those wings.