Board Thread:The Reference Desk/@comment-222.155.37.100-20130901103506/@comment-188432-20130903090450

Well, we don't know what happened to it. She has it in her right hand until the moment where she's backed up against the wall, closing her eyes. After the Doctor grabs her left hand and says, "Run!" we never see it again. There's a pretty big cut between "Run!" and the next scene when she and Nine burst through the doors, so one can imagine that she had time to pocket it, or that she dropped it. There's no evidence to support either. Basically, it's either bad continuity or a bad editing job.