In between StarClan and the Dark Forest rests the Starlight. It's a seemingly endless field of stars that a cat may wander in contentment. While not paradise, it's very close and kittypets and loners who die will come here, to wander the skies peacefully forever.
On the fringe of StarClan rests a dark and shadowed place known as the Dark Forest. There is no life to the trees, and the ground itself is rotted and corrupted. If a living cat dies here, they will die in reality, and their soul will stay trapped in the Dark Forest forever.