Soluun was born in the Underdark alongside his brother Nar’l Xibrindas, to a lesser-known drow house whose name has been obliterated from both memory and inscription. The two were orphaned during a power struggle between warring minor noble factions in Menzoberranzan. Some accounts suggest their house was not only destroyed, but personally ordered extinguished by House Baenre itself.
Where Nar’l responded with calculation and self-preservation, Soluun internalized the trauma. He grew into a creature of fury, skilled in the arts of stealth and subterfuge but barely able to restrain his impulse toward violence, particularly against those who reminded him of the surface elves who—rightly or wrongly—he blamed for his family's erasure.
Their paths led both brothers into the service of Jarlaxle Baenre, who recognized the value in their duality. Nar’l was placed in subtle assignments, while Soluun became an agent of fear, sent where messages needed to be written in blood. Despite his volatility, Jarlaxle kept him close—perhaps as a counterbalance to Nar’l, perhaps because every empire needs its mad dog.