*watches the guard fall down unconscious, the equivalent of little tweeting Vogon birdies circling around his head*

*still terrified, but concern for a friend has brought with it a kind of frantic authority...stage whisper*

Quickly now, before another guard comes...we don't know where John is, but we do know where they've got Oliver, and what they're doing to him. Plus he seemed to know something about the layout of this place, so he might be able to tell us just what and where this "Tank" business is.

Are we agreed?