Question: Ta-er al-Sahfer is a character in what universe?
Sentence (from "List of dimensions of the Discworld"): A number of minor fictional universes attach themselves tangentially to the Discworld universe, particularly Death's Domain, the home of the Disc's Grim Reaper, from which he descends to do his job, and the parasite universe of Fairyland, home of the sociopathic and vicious Elves.
Relevant evidence: No