John hesitated a moment. "You might end up throwing up..." he admitted. "The potion's magic deals with the curse, but the rest of it allows you to... void the rest from your body" he added. He walked over to the kitchen area and grabbed a wooden spatula, walking over to hand it to her. "But you can use that in the mean time..." he added.
Sure, he should have been a bit more honest but he didn't want to put her off. Not that he was sure that would have put her off. Still. He had to be safe. He didn't know entirely what was going to happen, just bits and pieces. And it sort of depended on the Vampire in question. He had to piece together the potion from extracts he found in a variety of magic books, including some of the notes he took from Bryns own books. The pieces took a while to come together but he was glad when they finally did.