Abruptly the moonlight was blotted out. The figure of a man seemed to rush out of the night, leaping in through the open window to land lightly on the deep carpet. And that window overlooked a sheer abyss, reaching down to the river gorge far below.

The sudden movements of the Europeans, and the quick gesture of the Rajah’s secretary, were arrested at sight of an oddly shaped pistol in a gloved hand. The intruder stood motionless, one hand gripping a light metal ladder that extended up through the window and out of sight. He wore ordinary flying togs, but his face was hidden by a black silk mask.

“Don’t move,” he said, in a low voice that was obviously disguised. “No—don’t do that!” The pistol jerked slightly; otherwise there was no indication that the trigger had been pulled. But one of the Europeans cursed softly as his arm dropped to his side, paralyzed.

“A neurogun,” the masked man observed pleasantly. “It can kill, you know. . . . I’ll thank you not to move. Now—” He hooked the flexible ladder across a chair and moved warily to the table. “The Earth Star, eh?”

“Don’t be a fool,” the secretary said. “You can’t hope to sell that. It’s unique.”

The intruder did not answer, but his quizzical gaze was amused. The tallest of the Europeans snarled, “Sell it? Jackass—haven’t you ever heard of the Merlin?”

As he spoke, his foot moved slightly toward the chair to which the ladder was attached. He froze as the Merlin turned toward him.

“You recognize me?”

“I’ve heard of you.”

“Good!” The Merlin’s voice was suddenly sharp. “Then listen! I have ways of finding out what I want to know. I discovered that certain powers ruling your country had decided to sell the Earth Star to our friend the Rajah. The price I don’t know, but it must be fabulous. If that money were to go to needed purposes, I’d not have come here tonight.”