Why should there be a substitute chesspiece standing by? Has this sort of thing happened before? A chesspiece having made a move of his or her own? The cult of the individual, apparently its not allowed. I should have thought that the Rook-No.53 was just the kind of chap the Village was looking for, a citizen with a mind of his own. But then perhaps No.53 wasn't up to the test the same as No.6.
Be seeing you