THE SKELETON KEY THE BY AUTHOR OF “THE GREAT SKENE MYSTERY,” “A CASTLE IN SPAIN,” ETC., ETC. WITH INTRODUCTION BY INTRODUCTION. To introduce the last book by the late Bernard Capes is a sad sort of honour in more ways than one; for not only was his death untimely and unexpected, but he had a mind of that fertile type which must always leave behind it, with the finished life, a sense of unfinished labour. From the first his prose had a strong element of poetry, which an appreciative reader could feel even more, perhaps, when it refined a frankly modern and even melodramatic theme, like that of this mystery story, than when it gave dignity, as in “Our Lady of Darkness,” to more tragic or more historic things. It may seem a paradox to say that he was insufficiently appreciated because he did popular things well. But it is true to say that he always gave a touch of distinction to a detective story or a tale of adventure; and so gave it where it was not valued, because it was not expected. In a sense, in this department of his work at least, he carried on the tradition of the artistic conscience of Stevenson; the technical liberality of writing a penny-dreadful so as to make it worth a pound. In his short stories, as in his historical studies, he did indeed permit himself to be poetic in a more direct and serious fashion; but in his touch upon such tales as this the same truth may be traced. It is a good general rule that a poet can be known not only in his poems, but in the very titles of his poems. In the case of many works of Bernard Capes, “The Lake of Wine,” for instance, the title is itself a poem. And that case would alone illustrate what I mean about a certain transforming individual magic, with which he touched the mere melodrama of mere modernity. Numberless novels of crime have been concerned with a lost or stolen jewel; and “The Lake of Wine” was merely the name of a ruby. Yet even the name is original, exactly in the detail that is hardly ever original. Hundreds of such precious stones have been scattered through sensational fiction; and hundreds of them have been called “The Sun of the Sultan” or “The Eye of