Warrior Cats: The Journey ON HOLD
Petal is abandoned by her no-tails with her friends but finds a group of wild cats to take care of them. Apparently the group of cats was bigger, but most of them left to find a safer home. Petal looks after a kitten and promises she will take care of her, but her task becomes harder as the kitten becomes more adventurous and risks her life for having fun. A sudden danger makes the cats that are left go on a journey to find the missing kitten, but on their way meet the cats that had left for another home.....
The story might change so don't trust the summary above. It will not change much though. It will still follow the main plot.
This is kind of based on Warriors (warrior cats) by Erin Hunter.