Bearclaw Valley Why is the raven like a writing desk?

Her teeth snapped only air, but it was because Merrick had slammed into the girl from the other side. This knocked the sacrifice off balance again and pushed her back towards Arielle who slammed into her in hopes of sending her back toward the bear king. 

The girl hit the ground then and rolled into a tree, the thud so loud it could be heard over any other sound. Arielle was sure it would weaken her further. 

The intruder managed to pull herself up before they reached her, but the bruin-heart pushed herself forward, close enough behind the girl to attempt a nip at her heals in the hopes of tripping her. If she fell this time, Arielle would be right there to take advantage.