The doctor let his eyes follow the flick of her hand as the water turned to steam, once again impressed with the ease and burning with curiosity. He didn't bring any more attention to it, knowing it would be rude to pry into something he suspected was not constructed magic. Arcanists could be secretive, but it was somewhat technical enough that Dalton judged it perfectly fine to ask. For those who were born to it, there wasn't much he could learn that wouldn't risk seeming invasive unless he was invited to ask.
As she stepped inside, Dalton let the door swing shut behind her, stepping over to the drawers occupying the hallway. Next to it was an elegant shoe rack with a few various sizes of slippers, bought because the floors of the home could be quite chilly. He ignored the slippers for now, instead going for the top drawer, but he gestured to them for Lin's sake.
“Feel free to use any of the slippers, my floors can get cold,” he said, as he rummaged in the drawer, but he found what he needed quickly. There was a collection of useful detritus in there, and he fetched a small Erlenmeyer flask. He tipped the drops of water in his palm into it, picking up a stopper and sealing it.