The problem had been: how could a spaceship lurk near a hostile planet from which detectors probed and around which warcraft spun? If she went free-fall, every system throttled down to the bare minimum, her neutrino emission would not register above the cosmic background. But optical, infrared, and radar eyes would still be sure to find her. Unless she interposed the moon between herself and the planet. No … She dared not land and sit there naked to anyone who chanced close when the far hemisphere was daylit. She could not assume an orbit around the satellite, for she would move into view. She could not assume a concentric orbit New Europe itself, for she would revolve more slowly-thus drop from behind her shield—Or would she?
Not necessarily! In any two-body system there are three points where the secondary’s gravitation combines with the primary’s in such a way that a small object put there will remain in place, on a straight line through the larger bodies. It is not stable; eventually the object will U(fe;. perturbed out of its resting spot; but “eventually” is remote in biological time.
The maneuver had never been tried before. But then, no had ever before needed to have a warship on call, unbeknownst to an enemy who occupied the ground where he meant to be. Heim thought it would become a textbook classic, if he lived to brag about it.
There could be no reply, except to Lac aux Nuages. The system, simple and hastily built, had been conceived in the belief that he would summon his men from there. If anything was heisenberg at the other end, he wouldn’t know until too late. He spoke into darkness. “Because of unexpected developments, we’ve been forced to lift directly, without passengers. It doesn’t seem as if we’re being pursued. But we have extremely important intelligence, and on that basis a new plan.”
“First: we know there is only one capital ship in orbit| around New Europe. All but two others are scattered beyond recall, and not due back for quite some time, sentry vessel is the enemy flagship
“Second: the enemy learned we were on the planet recalled the two vessels in reach. They are presently accelerating toward New Europe. The first should already commenced deceleration. That is the lancer
“Now, third: the enemy probably believes
“Accordingly, we have a chance to take them piecemeal. Now hear this. Pay no attention to the lancer.
“After that, come get me. My calculated position and orbit at the time are approximately as follows.” Again a string of numbers. “If I’m a casualty, proceed at discretion. But bear in mind that New Europe will be guarded by only one cruiser!”
Heim sucked air into his lungs. It was hot and had an electric smell. “Repeating message,” he said. And at the end of the third time: “The primary relay point seems to be going under Diana’s horizon, on our present course. I’ll have to sign off. Gunnar Heim to Dave Penoyer and the men of
Then he sat in his seat, looked to the stars in the direction of Sol, and wondered how Lisa was doing.
Increment by increment,