Gavin said, "Murdock reporting, sir."

"Take over, Mr. Murdock." Cabot's voice sounded harsh, metallic through the instrument. "We're describing an orbit about Venus at an altitude of seven kilometers."

"Check."

"Is Miss Petrovna there?"

"Yes, sir."

"Let me speak to her."

The girl approached the televisor.

Captain Cabot ordered her in a terse voice, "Stay with Murdock. If he shows any signs of treachery, shoot him!"

"Yes, sir," said the girl. She plucked the tiny dart-gun from the spring clip on her leg where it had been visible through the rent in her skirt.

"You heard my orders, Mr. Murdock," Cabot's cold voice issued from the instrument. "Stand by to fire the starboard tube-bank. We're coming out of the clouds again."