"Did it by any chance," she says, "infect you with free will?"
"If you have free will your oath wouldn't bind you," she says. "I'm sure you could think of proof."
"I cannot afford to keep an eye on you all the time, intimidating you into good behavior, and this settlement would be poorly served to feed you if you can't be trusted to work without supervision - without specifically my supervision, moreover."
"Oh, did he specifically send me fresh orcs with clean hands?" To the werewolf, "Thank you for your help. You should go."
"So that was my idea. I might think of another one eventually but I cannot stand around all day trying to think of ways to save you. Anybody have another thing to try?"
"There are Elves around. Getting rid of them would involve leaving you unsupervised and there would still be other Elves around."
"Then you," she says, "like every orc who hasn't been promoted to my personal attention, like every Elf who has died and hasn't met with Mandos's approval - will have to wait until I've got more resources at my disposal. Last requests or words or anything?"
"I'd write it down. If I encountered your mother in a conversation-amenable context I'd tell her. I can no more go looking for her than I can go rescue Vár."