Boardgamegeek https://boardgamegeek.com/boardgameexpansion/156936/descent-journeys-dark-second-edition-skarn-lieuten
Anglais - Skarn's origins lie shrouded in mystery. Some believe that he has always guarded the manor house, even before the death of the High Mage that lived there. Others suggest that he was unintentionally created from residual magic released by the wizard's death.