Northstar Vale who put the Halo novels here?

First thing I thought of:

he heard paws thumping on the ground towards him. he paused in midair, one paw raised. huh? he managed to say before umi barrelled in to him. he was frightened at first, his claws unsheathing. what was on him what was— wha? he gasped, recognizing her. his anxiety disappeared. oh broooooo! he grinned up at her, sheathing his claws. brooo, he said again, quieter.