Of course, the extent to which the spirit can actually pass on useful information is unclear. It could come under a literal application of “speak with spirits”, giving a bonus to Ghen’s already high perception….in any case, it would seem in character that Ghen would have the spirit tell him something that he really saw himself.
The center area is divided by intersecting walls that are just sort of there. Vegatation grows on the walls and here and there. It is open to the west (the western part of the structure, not the outside) though there are more walls at that part, and there is an opening to the east (the direction of the “wall” that Forge climbed upon). There is something over there. As in some grey stone, not a creature, gold pile, nor dancing pixies. There are also doors to the south, and you know that the structure extends to the south.
And there are runes carved about, as with many of the other interiors of this place.
Buckthorn climbs the roof, leaving the elf standing on the ground. He quizzically watches the shifter moving about the roof, “communing” with his spirit.
Let me know which way you are going.