With that feeble hope, she sent her light high up into the air, setting it to float above the treetops.  Maybe one of the elves will see it and come investigate, she thought desperately, even though she suspected they would not yet be back from their weekly outing. Still, a miniscule chance was better than none at all, and she threw up a shield charm just in time for Greyback to slam into it as he lunged for her. 