No more than a couple of hundred visitors were likely to have entered the vault during the previous calendar year: if their culprit had staked out the museum under false pretenses, surely his or her name would be in the logbook. The name Edwin Rist was, of course, there, on a page dated November 5, 2008. If they had run an online search for “Edwin Rist,” they would have found a number of websites connecting him to the world of salmon flies and his eBay listings. But six months after the robbery, they were still in the dark.

