The grandfather clock.

[Ace growls a bit at Terry when he says that.]

Knock it off Ace. Drake's the only other one here who'd know what that means.

[It's safe enough to. bring it up, considering Wayne Manor isn't even here for anybody to do anything with that information. Even if they could figure out what it meant.]

You want more proof than that, I have it, but I'm not telling you it in the middle of the slagging road.