That is, unless she managed to get him to trust her first. To follow her to some empty classroom and accept the vial when she gave it to him. It was actually this part of her plan that had given her the most difficulty. What she had spent hours debating the ethics of. It wasn’t hard to acquire. In fact, it was alarmingly easy to order a love potion and have it shipped to the castle. Fred and George’s ability to disguise their products as harmless was both admirable and alarming.