in Roman numerals. To cut the matter short, there was a similar note, as I may call it, in each of the other lights; and that made it plain to me that the glass-painter had had very strict orders from Abbot Thomas about the inscription, and had taken pains to get it correct.
'Well, after that discovery you may imagine how minutely I went over the whole surface of the glass in search of further light. Of course, I did not neglect the inscription on the scroll of Zechariah—"Upon one stone are seven eyes," but I very quickly concluded that this must refer to some mark on a stone which could only be found in situ, where the treasure was concealed. To be short, I made all possible notes and sketches and tracings, and then came back to Parsbury to work out the cipher at leisure. Oh, the agonies I went through! I thought myself very clever at first, for I made sure that the key would be found in some of the old books on secret writing. The "Steganographia" of Joachim Trithemius, who was an earlier contemporary of Abbot
