"Impossible!"

Merriton was out of bed now, still staring sleepily at them. Something in the boyishness of him struck a chord of sympathy in the doctor's heart. He alone of all of them had guessed at the genuineness of Nigel's fear for Wynne, he alone had seen into the man's heart, and discovered the half-belief that lurked there.

"I'm afraid it's perfectly true," he said quietly, as Merriton came to him and caught him by the arm, his face white. "We followed his tracks across the Fens—it had been raining and it was extremely easy to do—until they suddenly ended in a patch of half-charred grass. It was uncanny! We made a further search to make sure, but nothing rewarded our efforts. Dacre Wynne's gone somewhere, and those devilish flames of yours will be counting another victim to their lengthening list to-night."

"Good God!"

Merriton's lips trembled, and his fingers dropped from the doctor's arm.

"But I tell you it's impossible, man!" he broke out suddenly. "The thing's beyond human credulity, Doctor."

"Well, be that as it may, the fact remains—Wynne's gone," returned the doctor gloomily. "Of course we must communicate with the police. That's the next thing to do. We'll send over to make sure Wynne isn't at the Brellier's but I think there isn't a chance of it myself. Where he did go beats me completely!"

"And it fair beats me, too!" said Merriton, in a shocked voice, beginning mechanically to struggle into his clothes. "One of you might 'phone the police—though what they'll be able to do for us I don't know. It's a one-horse show in the village, and the chap who's chief constable was the fellow who told me of the other man that disappeared, and seemed quite willing to accept a supernatural explanation. Still, of course, it's the thing to be done.... And I actually saw, with my own eyes, that new flame flash out!"

He said the last words in a sort of undertone, but the doctor heard them, and twitched up an enquiring eyebrow.

"You saw the new flame? Oh—of course. And you—never mind. Our next move is to telephone the police."