It is featured in the fourth novel of the series, Taran Wanderer.
Taran has nothing of great value to give in exchange, so Orddu merely tells him of an alternative: the Mirror of Llunet in the far east Llawgadarn Mountains will show him who he is.
Taran Killam | Wanderer (car) | Wanderer | Wanderer above the Sea of Fog | Tarn Taran Sahib | Taran District | Taran Adarsh | ''Wanderer Above the Sea of Fog | The Happy Wanderer | Tarn Taran district | Taran Wanderer | Taran Panth | Taran Davies | Groo the Wanderer |