According to the cookbook the youth potion would make the girl year younger per drop she put on her food. It also warned not to put too much as it had no limits meaning too much and she'd become unborn.
Clara wanted this girl young, too young to date Richard. So this would do. Luckily it altered the memories of everyone but her and if she wanted to. The girl herself so no one would be the wiser.
Clara guessed the girl had to be around 20 or 21. She wanted to date Richard but not force someone back to diapers. So when the girl's food was ready to be served Clara put the potion into a dropper and remembered each drop would make her one year younger. Considering what she thought was her age. Clara put...