"But who could have taken it? There was no one on it, was there?"

The Hawk said wryly: "I thought not, but well, you remember the secret panel in Dr. Ku's laboratory?"

"Through, which he escaped before? Yes."

"I suspected that he might have someone hidden behind it, and I intended to question him when he was under the V-27, but in the terrific rush of things it slipped my mind. Sheer carelessness, Eliot; I'm very sorry. I should have known, for when we captured Ku Sui he spoke some words in Chinese through his helmet-radio. Now I can see that they must have gone to some man of his hidden there; and that man, obeying instructions, simply lay low, heard all that passed in Dr. Ku's laboratory, and then, at a suitable opportunity, took the asteroid away in search of allies. He knows his master is a prisoner here and unquestionably he will be back to release him. We must be out of here and far away by the time he arrives."

"Yes," Leithgow nodded slowly. "As you say, there is no choice."

"But your work here is finished, Eliot," Carse went on. "If only we can get to Earth safely, with Ku Sui and the brains in their new bodies, we will have achieved everything we wanted to achieve. We have proof of the crime done you, and we have Ku Sui, too. Your position will be restored and the blame put where it belongs. But we must leave for Earth at once! God knows how near the asteroid is, or who's on it."

"All right, Carse." The scientist got up. "What are your instructions?"

Ban Wilson appeared in the door, reporting that all the men had been accounted for and awakened. Carse started the wheels moving.

"Everything of value here must be transported aboard the ship. Eliot, you know better than I what to take, so you'll assume charge of the loading. Ban, you and all the men save two of Eliot's assistants will help. I'll need them to move the bodies. Send them to me in the laboratory. But first, be sure Ku Sui and his four men are safely confined. All right; let's go."

Within half an hour the general evacuation was finished and the ship loaded.