white lion familiar had traveled to Waterdeep seeking merc's that could be deployed in the underdark and realizing that Waterdeep would actaully have veterans of such forays. Her offering for sufficent troops was 1 ton of a variety rare metals.
To strengthen each families position Family Manthar and Agundar entered into an agreement to provide troops and share training, splitting the metals, sharing metal working knowledge gained, and sharing in the profits. The Agundar family provided 100 Talos trained men, also training 100 of the Manthar troops. At some point during the gathering and training of men, the Manthar family holdings outside waterdeep came under attack from a battalion of dwarves none to thrilled to learn of troops that would soon be provided to their enemy.
Damian discussed this information with his father when he was here and learned then that the Manthar family quickly broke from the agreement to appease the dwarves, gaining mining secrets from the dwarves along with sharing of their ore, thus become metal traders. Agundar was left with a broken deal and an angry wizard. Father explained that his grandfather kept his word and provided the wizard with the 100 men and received a 1/4 of the rare metals offered. Father claims that the wizard Darien could very well still be alive since drow are so long lived.