"On the highest ridge of Kolvir there is a formation which resembles three steps..."
Tir-na Nog'th is a very special shadow of Amber that contains an exact copy of the Pattern. Tir-na Nog'th only appears on moonlit nights above Kolvir and is connected to Amber by a moonlight stairwell. Tir-na Nog'th is known to interact with the visitor on some level, displaying his or her hidden fears and fantasies.