I opened my writing-desk in a great flutter. The doctor selected the largest sheet of paper and the broadest-nibbed pen he could find, and wrote in majestic round-text letters, with alternate thin and thick strokes beautiful to see, the two cabalistic words AFTER DARK. We all three laid our heads together over the paper, and in breathless silence studied the effect of the round-text: William raising his green shade in the excitement of the moment, and actually disobeying the doctor’s orders about not using his eyes, in the doctor’s own presence! After a good long stare, we looked round solemnly in each other’s faces and nodded. There was no doubt whatever on the subject after seeing the round-text. In one happy moment the doctor had hit on the right name. “I have written the title-page,” said our good friend, taking up his hat to go. “And now I leave it to you two to write the book.” Since then I have mended four pens and bought a quire of letter-paper at the village shop. William is to ponder well over his stories in the daytime, so as to be quite ready for me “after dark.” We are to commence our new occupation this evening. My heart beats fast and my eyes moisten when I think of it. How many of our dearest interests depend upon the one little beginning that we are to make to-night! PROLOGUE TO THE FIRST STORY. Before I begin, by the aid of my wife’s patient attention and ready pen, to relate any of the stories which I have heard at various times from persons whose likenesses I have been employed to take, it will not be amiss if I try to secure the reader’s interest in the following pages, by briefly explaining how I became possessed of the narrative matter which they contain.