"Zero minus five minutes."

At last the frenzied activity ceased, and the rocket stood alone, clean, beautiful, and awesome, only the instrument cable tying it to earth.

Rick couldn't tear his eyes from the rocket, even to watch the last of the red lights flick out, the green glow showing readiness.

Then, zero minus five ... four ... three ... two ... one ...

FIRE!

A steady hand threw the final switch.

Green flame stabbed from Orion's tail, grew to white intensity. The instrument cable dropped from the rocket's nose and writhed to the ground. Even through the thick walls of the blockhouse Rick heard the mighty rocket's voice, an ear-shattering roar of triumph that sent lancing pain through his head. The rocket shuddered, eager to be away. Thrust built up, and up, and up, and the exhaust light grew until it was like staring into the heart of a green sun. Then the great voice faltered, the shuddering increased.

A yell of pure horror burst from Rick's throat. High on the rocket's side, metal slowly peeled back like obscene steel lips opening, and green fire gushed forth. The shuddering ceased, and he knew the rocket was dead. The gash opened wider ... wider ...

The blockhouse door swung open and men poured out—silent, horrified men, helpless to do anything but watch, oblivious to the danger. Rick went out with them.

The desert was alive with sound now, with the roaring torch of rocket propellant and the scream of sirens. Speeding down from the base camp came the fire engines, to save what could be saved, to help still the flames so the Orion crew might find out what had gone wrong.