Thorndeep is an expansive forest located in the centre of the Edgelands, neighbouring Miremoor and the Mare's Teeth Hills. Like Silverpines, Thorndeep is infested with many balverines. Though historically unwelcoming of outsiders, the forest was nevertheless settled by Logan in his desperate attempt to find resources to fight the Crawler. Under his rule, the forest became partially industrialized, with various mines, pulleys, and cranes strewn throughout the dark forest.