This temple is a strange structure of shiny, dark-gray stone, surrounded by three towers. Although it does have the demeanor of an immense church, it is also surrounded by thick 5m high walls. The temple is built atop a barren hill.

The largest room here is the Library, which holds their prized collection of magical spells and related theory. The temple chamber is also large, with a great altar at one end and a 8m high statue of Grastmal at the other. The temple spans four floors above the ground, and four more below, all of which are usually swarming with busy clerics.

The High Temple of Grastmal is not near any major city, so the clerics have farmed nearby fields for food. Nearby villages have also assisted the temple, since the clerics have been helpful to them in the past.