When the blood kirin saw that Han Sen wasn't eating anything, it turned around to continue consuming the corpse by itself. It looked as if it wasn't going to stop until every last morsel of the black kirin had been consumed.
Han Sen had no interest in watching the beast eat, so he decided to leave the cave. He leaped into the blood water and swam back the way he had come. The cave had no other exits, so he had to leave via the same blood pond.
After he crawled out of the pond, Han Sen picked a few blood pears to give to Little Silver. The fox had retrieved the Thunder God Spike for him, but in doing so, it had been injured.
Both the fox and the weapon were of the lightning element, but the Thunder God Spike was clearly far more powerful than Little Silver. If Little Silver's Lightning Fox Body hadn't possessed full immunity to lightning, then the little creature might not have been able to pull the Thunder God Spike out.