Raised as a pagan, Trian became highly obsessive with the god, Crom Cruach, who was seen as one of the most bloodiest pagan gods. Trian spend his time in honor of Crom Cruach by creating small effigies of the god. Accepting the Children of Danu's invitation, Trian used his effigies as a selling point to join the cult. Along with the chanting and sacrificial rituals, Trian worked miracles in recruiting and expanding the minds of any new acolyte.
The Viking jarlskona Eivor Varinsdottir of the Raven Clan came across the cryptonym of "The Mist" when she assassinated The Blaze and recovered a clue from his personal effects. The clue was a note to The Blaze from The Ash, who stated that The Mist was doing well in recruiting new members under false pretenses. The recruitment operation was stated to be worked out of a stone circle of Doon Daven, in northern Ulster. Upon her arrival at Doon Daven, Eivor searched and found its stone circle. Eivor looked around and found a note near the druid statue within the stone circle. The note was a recruitment message from The Mist and the next location of their meet. The location was the burned fields with a decaying boat run, north of Aileach and west of Foyne Reservoir.
Eivor traveled to the fields and looked for any clues for The Mist. Eivor soon found a note near a sacrificed bird and the note was stated to a fellow acolyte of how he missed fire sacrifices that explained this world. Eivor deduced that The Mist's identity, Trian, and his location was at an inlet at Ulster's western bays, northwest of Foyne Reservoir. Eivor traveled in search of the inlet and found it, the Doon Fort. Entering the fort, Eivor caught sight of Trian, who was surrounded by his fellow acolytes. Nevertheless, Eivor made her way within the area and assasinated Trian, ending his role in recruiting for the Children of Danu. Among Trian's personal effects, Eivor recovered his amber shard.