"No time for explanations," Miko commanded. "It's the girl, masquerading as her brother. Get below, Coniston. Haljan takes us down."

The astounded Englishman continued to gaze at Anita. But he said, "I mean to say, where to on the Moon? Not to encounter Grantline at once, Miko? Our equipment is not ready."

"Of course not. We will land well away—"

The reluctant Coniston left us. I took the controls. Miko, still holding Anita as though she were a child, sat beside me. "We will watch him, Anita. A skilled fellow at this sort of work."

I rang my signals for the shifting of the gravity plates. The answer should have come from below within a second or two. But it did not. Miko regarded me with his great bushy eyebrows upraised.

"Ring again, Haljan."

I duplicated. No answer. The silence was ominous.

Miko muttered, "That accursed Hahn. Ring again!"

I sent the imperative emergency demand.

No answer. A second or two. Then all of us in the turret were startled. Transfixed. From below came a sudden hiss. It sounded in the turret; it came from the shifting room call grid. The hissing of the pneumatic valves of the plate shifters in the lower control room. The valves were opening; the plates automatically shifting into neutral, and disconnecting!