The Aspis Consortium
The Aspis Consortium were a near-legendary trade organization that existed hundreds of years ago. It was said to have existed on the scale of kingdoms, and ruthlessly controlled their interests, to the degree of manipulating royal politics, and reportedly funded the foundation of Guildore as a kingdom. Led by a charismatic Human known only as Libretto, the organization was assumed to have crumbled after she was captured and executed in Guildore, after which the Guildore Merchants Association rose to fulfil a similar role, albeit at a lesser scale.
According to Cromwell Loredrin, The Aspis Consortium still exists, and was behind the incident in Sunscale Manor and the attempted assassination of the party. It was later noted that Libretto had been resurrected, and The Aspis Consortium was presumably brought back by her hand.