Ya'shenn is much relieved to be out of that room, even if her own situation -- objectively -- may not have improved all that much. Assuming the psion survives the next several hours, she's going to have nightmares, for certain. She takes note of the warlock's defensive precautions as they go, but this is from pure habit, for -- at the moment -- her mind is focused on her immediate problem.
She takes one of the seats indicated. "Our knowledge of Mim's... condition... came through a third party. The source in question at least believed the information to be highly accurate... a belief which appears to have been borne out in practice. What was less certain than the fact of Mim's enthrallment was the precise location of his mark." The psion visibly grimaces. "It's definitely not the first place I would have looked."
"What I'm not sure of is how long this establishment has been... compromised, or how exactly Mim reported to those who marked him thus, without having been detected earlier."
It's not really in Ya'shenn's nature to be more forthcoming than absolutely necessary, or to readily reveal the identity of an intelligence source. The warlock will need to be more specific in his line of questioning if he wants more.
"I think you should talk."
"Yes, perhaps your companion should speak, gith, before you tell me any more lies, for no 'customer' could have noticed that mark."