Pulverae liaison with the Thieves' Guild. Tortured to death by Crassus, revealed many TG secrets.
Much lower in the hierarchy than Acertus, Lignertas was plotting to murder his superior and seize his position, and possibly repeat the process with Gravincia. Only mildly efficient as an agent or administrator, his main usefulness was an unparalleled knowledge of the street politics and underworld dealings of Thornal. A weasel.