: It also says that the Ghols captured both Stoneheim and
: Myrgard, and the dwarves managed to retake Myrgrad.
: According to Myth, the dwarves buried Myrgrad so the
: ghols couldn't capture it.
Actually, it's said that the Dwarves "collapsed the barbican, entombing ten thousand of their numbers behind as many tons of rock". It's typically been assumed that "their numbers" reffers to Dwarves, but someone long ago pointed out that it could mean Ghols - that Stoneheim wasn't buried, only a part of it was collapsed in an effort to stop the Ghol invasion. But it would have failed, and as GURPS says the Ghols now inhabit Stoneheim, so it would seem that the Dwarves did fail. But they recaptured Myrgard, at least.