Tim let out a sigh, frowning at a point over her shoulder. "He wants Bruce. I think... I think it's part of his thing--Ra's wants to actually be able to beat him, and if he's gone, then he can't anymore. So, he sees me--the lunatic ex-Robin who thinks Bruce is still alive--and decides to help, because--if there's a chance..." He shrugged a little. "It's just a hypothesis."