Looking toward the back of the long dusty aisle you find a small section of bottles under to generic name of Control, as dictated by the sign above. Fortunately you find that these bottles have more sensible labels naming body parts like arms and legs, rather than the unknowns of the numbered potions. The tiny section in the back is only around three feet long but contains a surprising number of potions due to the tiny size of the bottles, each only an inch tall and half an inch thick.
"Its because these impart the ability to control anything about the specific body part listed, instead of a specific effect for a limited time."
You jump as you hear an old withered voice behind you. Turning around you see a robed figure that suited the voice it contained. you open you mouth to speak but he quickly interrupts you saying, "Yes I knew that was the question you were going to ask, and yes I can read minds." Your questions answered you close your mouth. And just gaze pensively at the bottles.
You think of another question to ask and turn around but the withered old man has disappeared. The only way out of this aisle was the long hallway to the main floor, and now that you look back at it, about a hundred foot trek, but the old man is nowhere to be seen. Confused you turn back to the bottles and contemplate your options.