The Doctor rushed to the table, and seized the little book of the Holy Hildegard.

"Here, after the catalogue," said the Professor, showing him the last page of the book, "there is still more."

The Doctor fixed his eyes on the page. Latin characters without meaning or break were written in seven successive lines; under them was a name--F. Tobias Bachhuber.

"Compare these letters with the Latin annotation under the title of the mysterious manuscript. It is undoubtedly the same hand, firm characters of the seventeenth century; compare the 's,' 'r,' and 'f.'"

"It is the same hand!" exclaimed the Doctor with satisfaction.

"These unmeaning letters are a cipher, such as was used in the seventeenth century. In that case it is easily solved; each letter is exchanged with the one that follows. On this bit of paper I have put together the Latin words. The translation is, 'On the approach of the ferocious Swedes, in order to withdraw the treasures of our monastery from the search of these roaring devils, I have deposited them all in a dry, hollow place in the Manor of Bielstein.' The day Quasimodogeniti 37--that is on the 19th April, 1637. What do you say now, Fritz? It appears from this that in the time of the Thirty Years' War the manuscript had not been burned, for Frater Tobias Bachhuber--blest be his memory!--had at that time vouchsafed to look upon it with some consideration, and as in the record he had favored it with an especial remark, he probably did not leave it behind in his flight. The mysterious manuscript was thus in the Monastery of Rossau till 1637, and the friar, in the April of that year, concealed it and other goods from the Swedes in a hollow and dry spot in Manor Bielstein."

"Now the matter becomes serious!" cried the Doctor.

"Yes, it is serious, my friend; it is not impossible that the manuscript may still lie concealed somewhere."

"And Manor Bielstein?"

"Lies near the little town of Rossau. The monastery was in needy circumstances, and under ecclesiastical protection till the Thirty Years' War. In 1637 the town and monastery were desolated by the Swedes; the last monks disappeared and the monastery was never again re-established. That is all I have been able to learn up to this time; for anything further I request your help."