The three mysteries of Edwin Drood are thus stated by Mr. Cuming Walters:

‘The first mystery, partly solved by Dickens himself, is the fate of Edwin Drood. Was he murdered?—if so, how and by whom, and where was his body hidden? If not, how did he escape, and what became of him, and did he reappear?

‘The second mystery is—Who was Mr. Datchery, the “stranger who appeared in Cloisterham” after Drood’s disappearance?

‘The third mystery is—Who was the old opium woman, called the Princess Puffer, and why did she pursue John Jasper?’

It is with the first two of these mysteries that this book is concerned. In the concluding chapter some hints are offered as to the third, but in my opinion there are no sufficient materials for any definite answer.

The problem before us is to decide with one half of Dickens’s book in our possession what the course of the other half was likely to be.

It is important to lay stress upon this. An able reviewer in the AthenÆum, 1st April 1911, says: ‘The book is still in its infancy. Its predecessor, Our Mutual Friend, attained to some sixty-seven chapters, Great Expectations to fifty-nine, Bleak House to sixty-six. There is no strain on probability in supposing that Edwin Drood might, in happier circumstances, have reached something like these proportions.’ The fact is that the book was to be completed in twelve numbers, and we have six.

In the first part of this volume I have dealt with the materials for a solution.

In the second part, I have used the materials and the internal evidence of the book, and attempted an answer to the questions.