It comes from Ardbeg's experiments in the late 1990's and surprisingly is matured or part matured in French oak along with the usual ex Bousbon oak. And believed to be a marriage of Ardbeg's 10yo and Uigeadail.
From John Hansell, Malt Advocate, "Powerful, muscular, well-textured, and invigorating. Even within the realm of Ardbeg, this one stands out. The more aggressive notes of coal tar, damp kiln, anise and smoked seaweed are supported by an array of fruit."