"Right," Draco said to himself, summoning self-assurance as he thumbed through the pages of a dusty old cookbook. He had found it in the house’s library and it was magical, directing the reader to do things like carefully titrating the flame of an Incendio. But with some mental substitutions and elbow grease, Draco felt he could make it all work. "So, I suppose the first thing would be to turn on the oven."