RIO CROSSOVER TIME!
Prolouge
In the deep, dark forest, there is a clan, by the name of Thunderclan, one of the four clans that split the forest and lake into fourths. The other three, known as Wind, River, and Shadowclan are not important in this point in time. In the terotary of Thunder, A den containing the medicine cat, a little gray cat known as Jayfeather. He slept peacefully and deeply until he was plunged into the serene world of the dead, Starclan.
Jayfeather awoke in a shining forest. He could see, so he new it was a dream. It was... teasing to him. He could see just fine here, but then there, on the ground he walks and lives on he can't. Not a single living thing.
As he walked, he saw seven cats. They were curled up on stones and sitting in the soft moonlight other cats prowled around, nodding to Jayfeather in greeting and some to the seven. The first to speak was a blueish gray she-cat, named Bluestar.
"Hello, Jayfeather. We have something to tell you. This is Thunder, Wind, Shadow, and River. The first leaders of the clans. And of course you know Spottedleaf and Yellowfang." She mewed, her eyes shining.
Yellowfang stepped up. "I'm going to make this short, I's almost morning. Seven cats with the feather shine in their eye will come to free you from the new white and the returning black that enslave the clans"
Jayfeather was then thrown back into the realm of the living.
Jayfeather woke up and gasped. He ran into the leader's den. "FIRESTAR!"