Say boo to The Mackenzie Poltergeist, our latest collaboration with Tartarus beers. Inspired by the most active and malicious poltergeist known, he haunts The Black Mausoleum based in the Greyfriars Cemetery in Edinburgh

This massive 14.1% imperial pastry stout packs a punch its sweet and full-bodied from a combination of dark malts, lactose and a mammoth 3-hour boil. 30Kg of dulce de leche was added alongside toffee, vanilla and caramel to give the beer an even more rich flavour.