At once the fox leapt. Squirrelflight raised her claws to defend herself, but in the same instant a gray streak flashed between the fox and her: it was Ashfur, slashing at the creature’s muzzle with both forepaws. He let out a fearsome
caterwaul, but the fox stood its ground in the center of the clearing. It wrenched its head toward Ashfur, jaws snapping. Squirrelflight hurled herself at the fox with a furious yowl and raked her claws down the side of its face. It reared up, throwing her off; she hit the ground with a thud that drove the breath out of her. When she scrambled to her paws she saw Ashfur on the ground, battering at the fox with his hindpaws as it tried to bite down on his throat.

Twilight, Chapter 4