"What do you think, sir?" Thrackles inquired of the assistant.

"Devil's fire," replied Percy Darrow briefly. "The island's a little queer. I've noticed it before."

"Debbil fire," repeated the Nigger.

Darrow turned directly to him.

"Yes, devil's fire; and devils, too, for all I know; and certainly vampires. Did you ever hear of vampires, Doctor?"

"No," growled the Nigger.

"Well, they are women, wonderful, beautiful women. A man on a long voyage would just smack his lips to see them. They have shiny grey eyes, and lips red as raspberries. When you meet them they will talk with you and go home with you. And then when you're asleep they tear a little hole in your neck with their sharp claws, and they suck the blood with their red lips. When they aren't women, they take the shape of big bats like birds." He turned to me with so beautifully casual an air that I wanted to clap him on the back with the joy of it.

"By the way, Eagen, have you noticed those big bats the last few evenings, over by the cliff? I can't make out in the dusk whether they are vampires or just plain bats." He directed his remarks again to the Nigger. "Next time you see any of those big bats, Doctor, just you notice close. If they have just plain, black eyes, they're all right; but if they have grey eyes, with red rims around 'em, they're vampires. I wish you'd let me know, if you do find out. It's interesting."

"Don' get me near no bats," growled the Nigger.