Of the seven letters of Ignatius written in the last weeks of his life, the shortest on record is the one sent to the Christians living in Tralles, a town less than twenty miles from Magnesia. The bishop of Tralles has come to Smyrna to greet the would-be martyr. But for all its brevity, there is no shortage of wit in it. Having dispatched a couple of letters already (to Ephesus and Magnesia)…