RiverClan, ThunderClan, WindClan, ShadowClan, and SkyClan have all been living in serene peace now that their moons of terror have finally come to an end. Spottedheart is finally dead, and everything has fallen back into the harmonious lifestyle that they've all missed. Now that their shared foe is dead, the Clans can all go back to being tranquil... Or so they had hoped. A mysterious group of cats has invaded the Clans territories, and dead bodies are appearing left and right on their land. Prey is becoming scarce, cats are going missing, and there are secrets slowly resurfacing from the ugly depths of lies and betrayal. The Clans must learn that they cannot trust anyone... Not even themselves.