We find De Quincey writing in his prefatory notice to the enlarged edition of the 'Confessions' in November, 1856:
'All along I had relied upon a crowning grace, which I had reserved for the final page of this volume, in a succession of some twenty or twenty-five dreams and noon-day visions, which had arisen under the latter stage of opium influence. These have disappeared; some under circumstances which allow me a reasonable prospect of recovering them, some unaccountably, and some dishonourably. Five or six I believe were burned in a sudden conflagration which arose from the spark of a candle falling unobserved amongst a very large pile of papers in a bedroom, where I was alone and reading. Falling not _on_, but amongst and within the papers, the fire would soon have been ahead of conflict, and, by communicating with the slight woodwork and draperies of a bed, it would have immediately enveloped the laths of the ceiling overhead, and thus the house, far from fire-engines, would have been burned down in half-an-hour. My attention was first drawn by a sudden light upon my book; and the whole difference between a total destruction of the premises and a trivial loss (from books charred) of five guineas was due to a large Spanish cloak. This, thrown over and then drawn down tightly, by the aid of one sole person, somewhat agitated, but retaining her presence of mind, effectually extinguished the fire. Amongst the papers burned partially, but not so burned as to be absolutely irretrievable, was "The Daughter of Lebanon," and this I have printed and have intentionally placed it at the end, as appropriately closing a record in which the case of poor "Ann the Outcast" formed not only the most memorable and the most suggestively pathetic incident, but also _that_ which, more than any other, coloured--or (more truly, I should say) shaped, moulded and remoulded, composed and decomposed--the great body of opium dreams.'
After this loss of the greater portion of the 'Suspiria' copy, De Quincey seems to have become indifferent in some degree to their continuity and relation to each other. He drew the 'Affliction of Childhood' and 'Dream Echoes,' which stood early in the order of the 'Suspiria,' into the 'Autobiographic Sketches,' and also the 'Spectre of the Brocken,' which was meant to come somewhat later in the series as originally planned; and, as we have seen, he appended 'The Daughter of Lebanon' to the 'Opium Confessions,' without any reference, save in the preface, to its really having formed part of a separate collection of dreams.