Miss Linden’s contribution towards the elucidation of the mystery was written with her own hand.  After her physical strength had come back to her, and, while mentally, she still hovered between the darkness and the light, her one relaxation was writing.  Although she would never speak of what she had written, it was found that her theme was always the same.  She confided to pen and paper what she would not speak of with her lips.  She told, and re-told, and re-told again, the story of her love, and of her tribulation so far as it is contained in the present volume.  Her MSS. invariably began and ended at the same point.  They have all of them been destroyed, with one exception.  That exception is herein placed before the reader.

On the subject of the Mystery of the Beetle I do not propose to pronounce a confident opinion.  Atherton and I have talked it over many and many a time, and at the end we have got no ‘forrarder.’  So far as I am personally concerned, experience has taught me that there are indeed more things in heaven and earth than are dreamed of in our philosophy, and I am quite prepared to believe that the so-called Beetle, which others saw, but I never, was—­or is, for it cannot be certainly shown that the thing is not still existing —­a creature born neither of God nor man.