"Giving their nursemaids grey hairs," Amy says, rounding a corner to turn down the hall to Perry's study.

And then stopping abruptly, reaching one hand out to catch Marian, and flattening against the wall behind them.

Up ahead, a voice comes echoing out of the open door. A moment later, a rather self-important man in an improbable suit of very green clothing comes into the hall way.

Amy and Marian are just barely hidden from sight by the guard standing next to the door.

"Go that way," Amy mutters under her breath.