He puts out the fire and uses the featherweight charm to make the transport of the body easier. Shifting his form again, Harry grips Greyback’s sleeve with his small, taloned feet. Because of the charm, he can easily tow the body with him as he flies. He doesn’t take it far, however, simply placing it on the nearest footpath that looks well-trodden enough. If Harry left him out in the middle of nowhere, he might never have been found and properly identified; here, though, he will be found within at least a week or two, if not less.