This is what I think will happen in "Outcast".
Prologue
A tortoiseshell she-cat dug her claws into the wet earth. Rain pitter-pattered onto the ground. The she-cat looked at her three kits then looked up at the dark ginger she-cat glaring at her.
"You mouse-brain, Russetfur," hissed the tortoiseshell she-cat. "Why would I give my brother information?"
"So you deny it, Tawnypelt?" Russetfur demanded, her fur standing on end.
"Yes," Tawnypelt replied.
"You do?" Russetfur looked completely shocked.
"Are you deaf, you piece of fox-dung?" Tawnypelt snarled. Rain rolled down her fur. "I didn't tell my brother anything! Why would I? I have no clue how Firestar knew about Shadowtrack!"
"Oh really?" Russetfur's fur was beginning to stand on end.
"Yes." Tawnypelt's green eyes were narrowed.
"Blackstar's last words were 'It was Tawnypelt…'!" yowled a smoky black tom in the group of cats.
"You are right, Shadowtrack," meowed Russetfur. "Now you murder too."
"What?" Tawnypelt stared at her. "Now you think I killed Blackstar?"
"Why wouldn't you?" demanded a dark ginger tom.
"Shut your muzzle, Rowanclaw," snapped Tawnypelt. "I can't believe I trusted you." Rowanclaw glared at her.
"Why is he mad?" asked a golden she-kit.
"I'll explain when you're older, Tigerkit," Tawnypelt murmured.
"Why do I smell your scare-scent?" asked a dark ginger tom kit.
"Quiet, Flamekit," Tawnypelt whispered.
"How come Russetfur is being mean?" asked a light gray she-kit.
"Hush, Dawnkit," Tawnypelt whispered.
"Kill them," Russetfur hissed. "Tawnypelt and the kits." Tawnypelt hauled Tigerkit and Flamekit onto her back and then picked Dawnkit up by her scruff. She wasn't afraid to fight. She feared hardly anything but she did fear for the kits. She turned around and ran. She heard Rowanclaw getting closer and closer and she pushed herself faster. Rain poured down her face like a waterfall, entering her eyes and clogging her ears but she didn't stop.
"Stop!" yowled Russetfur. "If we ever see her again, she's dead but don't chase her onto enemy territory. They can deal with a traitor."
Don't worry, Tawnypelt thought. I won't ever come back, mouse-brain. Tawnypelt ran onward, pushing herself to get away. No Clan could deal with her. She'd leave them forever.
PLEASE review! I'll update soon.