Tackles Cassius

And because I did, Cassius never heard Mouse's claws on the marble floor.
The air suddenly shook with a bellowing, damned near leonine roar. Cassius's head whipped around in time to see my dog leap from twenty feet away and hurtle forward like a grey-furred wrecking ball.
Mouse's front paws hit Cassius squarely on the sternum, and a bloodcurdling snarl exploded from the huge dog's chest as they both went down. Mouse snapped his jaws at Cassius's throat, but he had too much momentum remaining from his charge. His paws slid on the smooth floor, carrying him past Cassius before his teeth could do more than lightly rip at one shoulder.

Dead Beat Chapter 37, Page 335


Mouse didn't skip a beat after killing the serpent. This time he rushed forward low, his snarls in chorus with the growling of thunder outside. He hit Cassius at the knees with the full power of his body, and Cassius went down like a tenpin before a bowling ball.
Butters rushed forward and kicked at Cassius's knife hand. The weapon skittered away again, over the edge of the gallery and into the great hall below. Cassius kicked at Butters and got him in the shins, sending Butters to the floor.
Cassius got out from under Mouse and lurched for me, his eyes mad, his hands outstretched in strangling claws.
Mouse landed on his back, and the huge dog's jaws closed on the man's neck.

Dead Beat Chapter 37, Page 337