Brenda takes the potion, and drunk half of it, while swallowing what she drank. You then see Brenda close the bottle, as her muscles began to shrink, causing her height to decrease, until she was the same size as you. "Uh, I don't feel any different," Brenda says. "Just walk onto the water, and see," the shopkeeper explains.
Brenda took that to heart, and ran into the water, but the shopkeeper stops her. "First thing is first though," the shopkeeper explains. "You wouldn't want to get your boots destroyed before going out there, would you?" "I guess not," Brenda says, and takes off her boots, along with her leopard skin skirt, and rushed into the water, to find herself falling, while at the same time her legs fuse together, and green scales are formed. Brenda's feet flatten, becoming a fin, as she was finally a mermaid.