Sarah Slugs Herself and Takes the Stone

"Don't do anything stupid, now," the older Sarah said, backing away a little. "Oh, you mean like this?" Sarah asked, before charging towards her future self and slugging her across the face. The Sarah from the future dropped like a sack of potatoes. Easy. She then bent over and pried the stone from her clenched hand. Just because Sarah couldn't use it, didn't mean that someone else couldn't. She'd just have to coerce someone else into making a wish *for* her. But who could she get to do that for her?