Dann's Mirror is a small magic pool of water that is located in the Fell Zone of Dorne. The pool holds the sorcerer Eldannen's memories, that he had left there when he died. Only the chosen one can taste the pool's sweet water, for if anyone besides the chosen one drinks from it, they are repulsed by the water's taste.
After Eldannen became trapped in the Fell Zone, he stumbled across the clearing in the forest and died, leaving his memories there with him.
The Golden Door Edit
Rye and Sonia stumbled upon the mirror while travelling through the Fell Zone after entering the golden Door. In his thirst, Rye drank from the pool, describing its water as sweet, though Sonia was repulsed by its taste.