In science class we learn the anatomy of fire, the three elements it needs. Fuel, oxygen, heat. Kel and me, we’re not allowed to sit together. I’ve gotta sit up front, where they can watch how I behave, where I can’t do any damage without them seeing straight away. She’s on the back bank of desks, with the window and the blossoming tree; vision seared by sun and hot pink petals each time I sneak a peek. They haven’t clocked that Kelli, in the corner, keeps stealing the scalpels, the ones designated for dissecting frogs. Every week she slides another up her sleeve, faster than I can confiscate. Just in case.