Onestar receives a prophecy from Starclan that kept giving him a headache. "You will be wiped out unless you and the other clans can find the creature of colors..." When he brings it up at a gathering, everyone is shocked and start panicking.

Unless one of the warriors can find this creature, none shall survive.

Meanwhile, Twilight is busy in her castle, with her friends, doing some potions when Pinkie accidentely drops one, when it hit the ground, a portal forms and sucks Twilight in, and then vanishes. Her friends stare in dismay until they panic. While Twilight finds herself in a forest by a lake, and there are these strange cats that talk.....

(Takes place after the Final book of Omen Of The Stars. Before the book Bramblestar's Storm.