Is this all properly worded?

Alert to the necessity of his escorting Raistlin and Crysania out of the city to avoid the impending Cataclysm, Caramon fought in the final bout of the games at the arena on the day that the fiery mountain struck Istar. Caramon was sent into pitched battle against his friends Kiiri and Pheragas, but the three united in the arena and slew the Red Minotaur, Arack, and the dwarf’s ogre bodyguard Raag in their quest for freedom.