Faye ran upstairs and slammed the bedroom door shut and locked it. She pulled the box with the vials out from under the bed where she had hidden it, and opened the box. Frantically, she looked for some kind of instructions. But the box was just full of vials. If Mary had received any instructions, she must have moved them somewhere else. Maybe each vial only works once, she thought. She began to look through the vials for another growth potion. Most of the potions listed animals of some kind. She really didn't want to be an animal, but maybe if she just took a small portion of one she would just gain the size of the animal.
Her thoughts were interrupted by a loud bang on the bedroom door. "Faye, open this door right now. I know you are in there, " said Mary sternly.
She began to riffle through the vials more quickly. There a male gender potion. She didn't want to be a man, but maybe she could use it to out-muscle her sister.
"You are never going to figure it out by yourself, Faye. Let me in and I'll help you. I can make you as tall as you want. Just let me in," said Mary soothingly.
Maybe my sister is right, Faye thought. Mary did tease her, but usually ended up helping her. There was no reason they both couldn't be taller (and maybe Mary would let her be the tallest!).
Faye rose to open the door when she saw another vial that had slipped out of the box, and almost rolled under the bed. She picked up the vial, read the label, then smiled wickedly as evil thoughts swirled in her head. The label on the vial read "Muscle".