" Instead of a helmet, Skarssen wore a tight-fitting leather mask fashioned in the form of some hideous amalgam of wolf and daemon, lacquered and pierced with fragments of stone. His eyes shone through the mask, cold flint to match the grey of his armour, and a black-bladed axe with an edge like napped obsidian was sheathed across his back. "

― Graham McNeill , A Thousand Sons (The Horus Heresy #12)