TIR-NA NOG'TH is the ghostly reflection of Amber Castle in the sky of Amber.

It is solid while the moonlight falls upon it, so much so that its Pattern can be walked. Within the ghost city apparitions go about their business, intangible to and unaware of visitors. The ghosts of Tir-na Nog'th seem to reflect future possibilities, interpretations of the past or alternate versions of the present. Opinions differ as to how useful these visions are.

Oberon's ghost prowls Tir-na Nog'th these days. Encountering any version of it is always unsettling.