This is a hidden neighbourhood that comes with The Sims 2: Apartment Life. In this neighbourhood are two hidden lots; Fortress of Eternal Darkness and Palace of Neverending Light. These are special lots where witches and warlocks can go.
Rosie shares all her non-Sims creations on RosieSoCosy. This includes game mods/content, illustrations, stream/YT stuff and lots more.