They could only stare at him, too bewildered to speak.

“And then,” said Ellery, his voice hardening, “even if we chose to overlook such trivia as dematerialized houses, in all conscience we can’t overlook... murder.”

Chapter IV

The White House

And there was the Black House again. Not a wraith. A solid house, a strong dirty time-encrusted house, looking as if it would never dream of taking wing and flying off into space. It stood on the other side of the driveway, where it had always stood.

They saw it even as they turned into the drive from the drift-covered road, its bulk looming black against the brilliant moon, as substantial a house as could be found in the world of sane things.

Thorne and the girl were incapable of speech; they could only gape, dumb witnesses of a miracle even greater than the disappearance of the house in the first place.

As for Ellery, he stopped the car, sprang to the ground, signaled to the car snuffling up behind, and darted across the snowy clearing to the White House, whose windows were bright with lamp-and fire-light. Out of the police car swarmed men, and they ran after Ellery like hounds. Thorne and Alice followed in a daze.

Ellery kicked open the White House door. There was a revolver in his hand and there was no doubt, from the way he gripped it, that its cylinder had been replenished.

“Hello again,” he said, stalking into the living-room. “Not a ghost; Inspector Queen’s little boy in the too, too solid flesh. Nemesis, perhaps. I bid you good evening. What — no welcoming smile, Dr. Reinach?”