- "This large, pewter ale stein is of unusual manufacture, its surface etched with strange runes. It keeps its contents icy cold, whatever the surrounding temperature."
The Frost-Ale Mug with Dark Bird is a quest item in Planescape: Torment.
Can be given to Merriman in the Civic Festhall as part of the quest chain that starts with Dolora in the Brothel, who wants the keys to her heart back from him.
To acquire this item, TNO must go to the Art and Curio Galleria in the Clerk's Ward with a Frost-Ale Mug, study the "Dark Birds of Ocanthus" and catch one in the mug.