Then if you've seen her, why did you wonder about using a walk-through-walls code to talk to her? Anyone who's seen her knows a walk-through-walls code won't help.
No, the girl on the second floor doesn't seem to be a maid. I suspect she's supposed to be a member of the family that lived here.
Poryhedron's Monotype Challenges
Winner of the 2007 Pokéhelper Unown Award! Glad I could be of help!
Pokémon GO: Level 37, Team Mystic
She's a little girl so definitely not a maid. I think I've seen the butler too once when I was specifically looking for him. The girl was more of an eye opener cause she was suddenly there, like a ghost coming out of a closet in b-movie. ^^
Austrian ViceMaster Alex
Winner of the 2014 UnownN award.
Winner of the 2015 UnownW award.
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Poryhedron's Monotype Challenges
Winner of the 2007 Pokéhelper Unown Award! Glad I could be of help!
Pokémon GO: Level 37, Team Mystic