It's a little surprising; normally she is permitted to enter random forests of her own will. But not that much.
She starts walking, looking for whatever inane plot she will be required to participate in/thwart this time.
Eventually she sees a cottage. She makes for that--random houses in the woods are prime weird shit locales.
She knocks on the door. "Excuse me! I don't know what's going on here but I'd rather get it over with sooner rather than later so I can go home!"
"I didn't realize the mortal world was so dangerous for mortals apart from the whole mortality thing."
"That would be nice, but it would be even better if I could borrow something to draw with."
"Right." She sets the notebook aside. "My magic is called sorcery. It involves knowing my environment and the thing I'm trying to do magic to very well, as well as an invisible environmental factor called harmonics that have to be found through trial and error. It can do things like lights or turning people invisible or growing plants faster."
"There is a court," says Promise, "in my Fairyland, run by a sadistic sorcerer-collector who likes psychological tactics and when those don't work, or even when they do, is a consummate master of orders with no loopholes."