"It would be my pleasure, my lord," said Newton, stepping forward, eluding the hand of the Marquis of Ravenscar who had groped forward, out of some instinct, trying to yank him back from the abyss. "It is closed by three locks—all three must be removed for the lid to be opened. The top, as you can see, is fashioned with a hatch, devised in such a way that a small object may be deposited into the Pyx without opening the locks. But it is impossible for a hand to reach in and remove any object." Newton operated the mechanism, letting everyone get a look at a pair of swinging doors rigged just as he had claimed.