Inside Job
The follow up quest to "Bone Pit." Some of your caravans are being attacked, you must interrogate the traitor in the organization to determine the source of the attacks.
Walkthrough
After meeting Hubert in the Hightown(Day) marketplace where his shop is normally located, you get some dialogue options where you can ask one question about the prisoner before choosing to proceed with the quest or not. Once in the mansion you get a choice of letting Hubert continue to beat him or to appeal to the traitor's better nature. Naturally, your best option is the to be nice to him. Choose to sweeten the pot and he will reveal the location of where some gold is that he stole from you. After the interrogation you will be transferred to the location of the ambush. The rest is pretty straight forward from this point.