She counted out the coins without haggling, and they told her where to find the still-life painting of fruit that hid the entrance to the Hogwarts kitchens, a level below the Great Hall. Gred added, "Well, it looks like a still-life, but it’s animated really. The pear giggles when you tickle it, and turns into a green doorknob. That’s what makes the frame swing open like a door."