"Yes...but do you mind putting back the floor and wall?"
"I can't do that."
"Ah-ok...well maybe from now on we clean the nonmagical way, alright?"
"Mayyybeee?"
"Yes. No more vanishing walls."
"Ugh, fine."
"Thank you."
"Killjoy."
"Pft-sorry-"
She smiles
"I made it very, very clean!"