A new hero

I kill the Man's Best friend

It was Mrs O'Leary. It was her.

She should've sat when Percy blew the whistle. But she wasn't the old one: she had wrecked the arena and the Arsenal. She wasn't just unobedient; she was insane. Annebeth tapped his shoulder.
" Percy! For the gazillion time, tell me!"
"Tell you what!"
"Should we kill this horrifying animal?"
"She's not horri-" O'Leary growled so loud that everyone froze.
" Face it." Annabeth said, " she is the menace. She is a threat to the camp!"
"Ok then. Do whatever you want."
Percy glanced at the arena. The red-furred creature was pounding at the the kids from Demeter's Cabin. They were just weak compared to the dog. Percy shifted uneasily.
He charged into the arena, hacking Riptide into the hound. Fighting a canine sizing as larger than a tank isn't that easy. A millisecond you're not paying attention, the millisecond you'll get trampled. He sidestepped while the hound jabbed his paws into the ground, leaving Percy running to the Ares Cabin, calling for reinforcements. Clarisse shoved her way into the arena and yelled at the dog. "Come on, Bitc*! Fight me. I'm here! Fight me if you dare!" She swung the Lamer out of her back and jumped on O'LEARY's back. Fast as lightning, she swung her back, sending the skilled fighter thumping on the floor. Percy has no choice. He had no Plan B. He found the toy bean bag his former pet companion had played as a ping pong ball. He tossed it at the giant dog. It didn't work. The canine kicked at with her hind legs and she charged at Percy. Using his instinct, he hit the dog with the butt of his sword and sent her falling next to Clarisse. She knew what to do next. The daughter of Ares sliced the hound in her stomach. The creature disintegrated
Clarisse picked up a green stone on the floor where the wreck as brunt into ashes and said,"Found this after she disintegrated. Hope you found this useful."
She tossed him a pearl craved an apple.
Eris, Percy mumbled, She brought O'LEARY's soul.