The following day there is: school!
Sadde and Willow are already there, sitting on a bench chatting.
"Now we wait!"
… And then will indeed wait for about two and a half minutes. Approximately the same amount of time as last time.
"Or if it does it at least doesn't vary between you two – maybe if someone I really hated tried to magic me it'd matter, but yeah, doesn't seem so so far."
"My hair, yeah. Think so. Took a couple of hours to properly undo last time, though, I think."