Belmarniss can now sorta muddle along in the local common thanks to aggressive use of comprehend languages to hand-translate books after roping a local into teaching her the alphabet. Also she hates teleport traps with every fiber of her being. Also she has figured out at this point that she somehow leveled in sorcerer instead of wizard during the business with the pirates and has no idea why that happened or whether it will happen again. And she has sold this stupid arrowhead to two different curio shops and given up as it seems to be cursed. And she just needs to keep doing what she does, she guesses, till she can teleport herself home. The Yawning Portal is a nicely ironic name.
"We're trying to solve this puzzle that calls for these rods, you might have gotten one recently? That's all we need. Your wings are really pretty."
"You're very kind to say so," she says in an oddly bitter tone. "Halaster did give me a rod - he told me to keep it safe. I'll give it to you if you can defeat my greatest enemy in this place, the ogre mage Olgin Hasterean."
"That be ogre mage's name?" Deekin asks, making a note. "He already defeated."
"Really? Then... show me the rod you took from him, and I'll give you mine."
Deekin rummages in his pack for a moment and pulls out the blue rod. "Here it be."
"So it is," the faerie queen murmurs. She shakes her head, then goes over and knocks on the trunk of a nearby tree, causing it to split open and reveal a green rod. "Here is your reward, then. I'm glad to be rid of it, truth be told; taking anything from Halaster makes me uncomfortable."
"Sorry for swiping the air out of your lungs! Have fun making more zombies!"
And let's go see if the puzzle can be solved now?
"We don't have a red one in particular. I think any other we could make a straight path without. Red one's in the mirror room."
"Okay, who can we make least dangerous. I'll do it if I'm the best choice but I'm full of spells and don't fancy using them all up on purpose mid-dungeon in case that dragon has, I don't know, shapeshifted to make it out the door and is prowling around looking for us - Jojo can't be disarmed - Deekin, do you know Silence, it's dismissable but if you cast it on yourself in advance maybe your duplicate wouldn't be able to dismiss it?"
Deekin shakes his head. "Deekin meaning to learn it next time Deekin get new second-level spell. Deekin not want to suggest, but maybe tie Belmarniss or Deekin hands so no spells? Belmarniss have Still Spell?"
"I don't, and everything I've prepped does want a gesture. Also I'm good at counterspells and will have the same things. But if I can talk her around she'll want to write some things down, probably."
"I think it still makes sense to have her hands tied at the start, if reflections universally attack their originals; you can then have a conversation, and if she wants to write something down she can be untied."
"Yeah, just giving you advance warning that asking to be untied isn't necessarily a ruse."
"I doubt it's worth the risk, but I do wonder what would happen if I were on your belt when you looked in the mirror," Enserric says contemplatively from his place at Deekin's side. "Am I equipment or a separate subject? Would I be exempt as a technical undead? Wheels within wheels."
"Yes, let's."
They trek back to the Hall of Mirrors. (They're getting to know this first floor of Undermountain quite well, by now.)
Inside: a hall, containing mirrors. Two dozen of them, along both of the long walls. "We'll stay by the door," Garrus says, tying a length of silk rope around Belmarniss's wrists in a manner that suggests some amount of practice. "Try to stay a few feet away from the mirrors when you look into them, so we don't get confused about who the reflection is when she does pop out. I'll have arrows nocked, but not pulled, so I can intervene if necessary but won't be too jumpy on the trigger. And again, sorry about all this."
She writes herself a note; it's in her native language so none of them can read it. She pins it on.
She lets him tie her wrists again and she walks in.