Nightcloud is a warrior of WindClan who has served under Tallstar's, Onestar's, and Harestar's leaderships in the forest and the lake territories. She was born as Nightkit in the old forest, and was later apprenticed as Nightpaw. As a warrior, Nightcloud took part in the Great Journey. Once the Clans found their new homes, Nightcloud sided with the former deputy Mudclaw in his rebellion against Onewhisker, though his cause was defeated. After, she became mates with Crowfeather when he returned to WindClan after eloping with the ThunderClan medicine cat, Leafpool. While Nightcloud bore three kits, only Breezepelt survived, causing her to become incredibly overprotective of him. Nightcloud despised Leafpool, believing she was the reason Crowfeather didn't love her, and was further outraged when it was revealed that Crowfeather had fathered her kits. However, the two eventually resolved their differences, pledging to get along for their son's sake.