Mortlach 25 year old, 43.4%

The richest of the quartet. Super-dense with a note of burnished brass, then light leather and cashew alongside sandalwood. The waxiness and tropical fruit typical of old whiskies is in the background before it moves into lanolin. The palate starts sweetly, with added liqueur cherries, earth, and smoke but for me, after the complex nose it fails to deliver, especially since it is so scarily priced.£600/500 ml