Jaypaw, Hollypaw, and Lionpaw are doing well as ThunderClan apprentices. Lionpaw shows good promise in the hunting department, and Hollypaw is an excellent fighter. As for Jaypaw, his skillful knowledge of herbs and his ability to see into the minds of others help him in his medicine cat training.
But soon Heatherpaw, a beautiful WindClan apprentice, tempts Lionpaw into meeting in secret. They use some undiscovered tunnels that connect their territories. Lionpaw feels certain that these meetings aren’t hurting anyone, but his confidence diminishes as he becomes too tired to do well in training. And when the vengeful spirits of Tigerstar and Hawkfrost offer to train him in all they know, Lionpaw wonders which is more important: his future as a warrior, or the she-cat he loves.
Soon, more cats have been drawn into the tunnels, and when the dark river rises, and threatens to drown them, they have to rely on their wits. Can they outrace the dark river? [Jordan]