It must be talking about the cellmate who had abruptly escaped into the duct-work, Shepard thought. He wasn't necessarily disposed to be overly concerned about someone who so obviously desired to be a loner, but getting stuck in a completely unknown situation could make a person desperate for any method of quick escape. In any case this synthetic didn't seem disposed to shoot the escapee on sight since they were being rather specific about having them returned alive.

"If you're talking about the other one that was in this cell with us, you'd probably want to start looking into wherever they could tunnel into from here. If you have some schematics on the general area at least that would be useful. As long as you keep your word about helping her..." Shepard gestured towards Mira, "Then I think we have an understanding."