Still, it looks like an interesting exercise. Now that the rest of Detachment 2702 has arrived, making further trysts with Margaret impractical, Waterhouse has nothing to look forward to. Trying to crack the code used on these sheets will be a perfect puzzle to fill the gaping void that opened up as soon as Waterhouse broke the combination of the safe. He steals some paper of his own, sits down at the desk, and busies himself for an hour or two copying out the ciphertext from the skipper’s pages, double- and triple-checking each code group to make sure he’s got an accurate copy.