"That's I," said he, grammatically and with dignity. A man less great would have said "That's me," which is why in the darkness I knew it was Mr. Caine and not his hired man I was speaking to—or with, as your style may require.

"Mr. Caine," said I, not without nervousness, "I have come—"

"So I perceive," said he; and then an inspiration came to me.

"—to lay my gloom at your feet," I said, with apparent meekness. "It is all I have, but such as it is you are welcome to it. Some people would have brought you rich gifts in gold and silver; some would have come with compliments and requests for your autograph; I bring you only a morbid heart bursting with gloom. Will you take it?"

"I appreciate the courtesy, madame," replied the great man, wiping a tear from the end of his nose, which twinkled like a silver star in the blackness of the corridor, "but I cannot accept your offering. I have more gloom on hand than I know what to do with. I am, however, deeply touched, and beg to offer you the hospitality of the moat, unless you have further business with me at my regular rates."

A dreadful, blood-curdling wail, like that of a soul in torment, interrupted my answer. It seemed to come from the very centre of the earth directly beneath my feet. I was frozen with horror, and my host, with a muttered imprecation, turned and ran off.

"I haven't time to see you now," he cried, as he disappeared down the steps of a yawning hole at the far end of the corridor. "I can't afford to miss the experiment for anything so small and cheap as a morbid heart bursting with gloom."

I followed closely after, although he had not granted permission. I didn't feel that I could afford to miss the experiment either, and ere he had time to slam to the door of the dungeon which we ultimately reached, I was inside his workshop.

If it was chill without, it was deadly within, save that the darkness was not so intense, red lights burning dimly in each of the four corners of the dungeon. The walls were covered with a green trickling ooze from the moat, and under foot the ground was dank and almost mushy.