La guerre des clans, cycle 7, tome 1
Erin Hunter2019

For the first time, all five warrior Clans have settled into their true homes in the territory around the lake. But when a shockingly harsh winter descends on the forest, a new darkness begins to spread—a shadow that threatens a beloved Clan leader, the cats' connection with their ancestors in StarClan, and the warrior code itself.

Titre original : Warriors, The Broken Code, book 1: Lost Stars (2019)