Heather watched Seth as she cut herself, then found herself watching a bit of blood seep out before going back inside the small wound, which closed up and healed over completely in front of her eyes.
She hadn't expected that.
"I just have to fill a syringe," she explained. "Not much. So...when you find it, you'll let me take some, right?" She wanted to make sure it wouldn't be for nothing. Not that Heather was prepared to walk away without what she needed.