The painting

Approaching the painting, Kasha noted it was a simple landscape depicting an open field. Tall grass seemed to sway in the wind, with a cloudless sky showing off the sun. But then, upon closer inspection, Kasha saw that there was a small key inside the painting. But whereas everything else was clearly paint, it was almost like an actual metal key was inside of the painting, placed in an area of shorter grass. It looked far smaller than it should have been, as if it were far away.

Something told Kasha this painting was magic, in some way, and that she could advance by finding a way to remove it from the painting.