In the forest where Nightclan resides, 2 kits, Shadekit and Flowerkit, are born. The clan is in joy at the birth, but the joy soon ends after dark time falls upon Nightclan. Told a moon before their birth, an omen says a dark time that will come over the forest, until a weird light restores order. As cats try and find out its meaning, the kits have to find their role in the omen.

Rosekit's a bouncy kit who can't wait to get out of the nursery and straight into the forest to explore. Stormclan's at their peak, Newleaf has brought large amounts of prey and lots of kits, but when trouble at a nearby Gathering puts Stormclan and Adderclan on edge, Blizzardstar doesn't know what her next move is. It may be up to Rosekit to solve the problem.