No copyright infringement intended towards Warriors, the Erin Hunter crew, or HarperCollins. I own nothing but the storyline in this writing.
This is set a week or so after the end of the second series.
"Firestar, how do we know it was them?" hissed a voice. A streak of brilliant orange flashed between two fronds on the edge of the new forest, followed by several more pelts. "The evidence is abundant enough, Brambleclaw," a gruff mew replied. "We can't tolerate ShadowClan trying to steal prey. You should know that." Firestar perched on the top of a small gradient overlooking their enemy's camp. Fifteen other cats stood behind him, of varying color. A quick flick of the tail and the ThunderClan battle patrol rushed down the hill and tore into their rival's camp at full speed. Living nearest to the wall, ShadowClan warriors streamed out of the den and instantly engaged in battle. Blackstar swaggered out for underneath the leader's rock and began bounding toward a stalwart Firestar. The two launched at each other and met in midair, in vicious battle. The brutality of both sides was on full display, locked in a duel of strength and superiority. "ThunderClan, pair up!" came a yowl from Firestar. As Clanmates joined, a hunting patrol from ShadowClan returned, and with it brought several formidable, and more importantly fresh, warriors. Taking advantage of the newfound energy, ShadowClan swiftly overwhelmed the ThunderClan patrol and drove them back. "ThunderClan, retreat!" Firestar's yowl split the air. Beaten warriors limped out. Brackenfur was met and given a hefty blow by Blackstar as he was the last to leave, knocking him cold. Turning to face Firestar, Blackstar gave an icy stare. The ThunderClan leader returned the favor, and lifted Brackenfur up onto his back. Following the scent trail of his Clan, the leader forged on through exhaustion, despite the briefness of the encounter. Firestar soon had no choice, and gave in to the darkness right on his border.
First ever chapter guys, feel free to leave feedback. I wanted to keep the battle fast, and I most likely will do a drawn out one later.