So long.

The dark rim of the crater bent over the horizon to rush toward him. His finger flicked at the controls and the lifeboat rose a few hundred meters. Through the darkened screen he discerned the smooth solar panels and heat sinks camouflaged into the crater wall. Everything on the night side lay in darkness.

Purple light bathed the cockpit for an instant. The boat plunged down into the crater and hottailed across the surface at an altitude of less than eight meters then crossed to the other side of the south pole, dodging mounds and boulders. Braking rockets immediately flared into life, kicking dust up around the boat. The craft performed a three-bounce landing, shuddered, and came to a rest in the shadow of the dayward edge of the crater rim.

The dust settled quickly in the absence of an atmosphere and Baker opened the hatch.

The crater looked like any other crater on any other planet, except that a faint aurora shimmered every few seconds overhead. The massive flux of the solar wind provided Mercury with its own cloud of particles to ionize.

Something moved against the stars. Another psychfighter.

He watched it flare and vanish.

Good shot, Circus. He looked about, seeing nothing in the crater to indicate an entrance to the cryonic unit. He wondered where they would put an access hatch. Depends on whether they merely wanted to hide during a brief war or whether they wanted never to be found. If it’s on a time lock, it may be sealed from the inside.

He strapped a hand laser to the back of his right glove and climbed out of the cockpit. Surface dust compacted under the soles of his boots. At less than half earth weight, his steps were long and easy, but cautious. Approaching a large boulder, he chose to leap over it rather than alter his pace. A burning on his back from the top of his head to below his shoulders distracted him enough that he stumbled on landing and slid through the sandy rim of a smaller crater.

He stood and brushed the dust off. His back still felt warm. Picking up a rock, he threw it straight up with all the strength the pressure suit permitted. At four meters high it glowed brightly, then darkened as it dropped slowly back into the crater shadow.

High jumps cancelled due to sunshine, he thought. We’ll just stick to the marathon.

He walked with long steps, but refrained from any more leaps. There was still no visible evidence that the floor of the crater was anything more than a level expanse of pitted dust punctuated by a single craggy hill at the center, a feature common to many impact craters. He reached the central peak and stood before it, crouching slightly. Another stone toss indicated that the sun shone just half a meter over his head. A sharp line separated the bright upper half of the hill from the shadowed lower half. Reflected sunlight illuminated certain portions of the shaded areas, so Baker could see them when he covered his eyes from the glare of the upper half of the peak. He found that he could not even look at the upper half for more than a few seconds.

He began to sweat. Conduction’s making the ground too warm and light reflected from the crater wall adds to the heat. Excess perspiration passed through the pressure suit and evaporated swiftly in the vacuum, cooling him. The Späflex adjusted its porosity to handle the new conditions. It was not enough. He knew he would have to find shelter fast or return to the shuttle.

Baker’s gaze searched around the crater, then considered the central peak before him. At the very top, drenched in blinding light, lay something black, curled, and weblike. It reached under a small mound of dust on top. Baker followed the slope of the mound with shielded eyes. Something about the dust did not look right.

Why would a crater peak have small dust rays extending from its base? And why that pile of dust on top?

He pounded one fist lightly against his chin. He reconsidered at the charred fibers near the summit of the tiny peak. Sure. Put the main shaft under the peak, drag out a canvas sack and fill it with dirt, wrap it in Mylar until it’s set on top of the peak, pull the Mylar inside and close the hatch. The canvas bag burns, bursts, and you’re covered.

He examined every square centimeter he could see without stepping out of his protective shade. He caught sight of something just above the shadow line-a soft rectangular bump that seemed too regular. He flung rocks at it until one hit above it. Dust tumbled away from an airlock handle in small-scale avalanches.

Straight. Now I hope I don’t need some code to unlock it.

He bent down to approach the base of the mound. Digging his boots into the ever-hotter sands, he worked his way up to the very edge of darkness. Crouching there, he squinted to see the exposed handle. Sunlight glinted dazzlingly on the upper edge of the polished metal.

Doesn’t appear locked. Here goes one hand. He reached up with his right hand, stopped before it crossed into sunlight, and lowered it. Better not risk the shooting hand. He quickly grabbed the handle with his left hand and yanked.

The Späflex did not burn. After only an instant of insulation, it efficiently transferred the heat directly to his palm and fingers. The hatch opened and Baker fell back to the hot sands, screeching. The sand and dust from the door sprinkled down upon him. He rolled clear, but some of it smothered his legs, burning like cinders. He leapt up to stamp off the dust. It sizzled on the sweat-soaked Späflex.

He grunted more in fury than pain, breathed lightly for a few moments, then looked up at the hatch. A shaft of sunlight entered through the opening, heating and boiling away the atmosphere that had condensed inside years before.

He climbed back to the barely man-sized hole and looked up toward it. Sets of instructions in several languages had been printed on the inside of the door.

Have to get inside to read them. Now how do I get inside without roasting? Wait until the planet makes a half-turn?

He touched the back of his shoulders. It no longer hurt. Not much of a burn. Maybe I can last as long as a second or two if I keep moving.

He dug his feet into the side of the mound, reached up and grabbed the bottom of the hatchway. Pulling and kicking, he wormed his way inside the compartment. A rounded square of light on the opposite wall blistered paint where it fell. Baker watched it for a moment, then considered closing the hatch.

His entire back hurt. He realized that both of his hands were now burnt when he tried to unclench them.

“God damn it!” He stood up, avoiding the deadly sunbeam, reached outside with his left hand, and drew the hatch shut. The clang reverberated through the floorplates. He sat down and drew his knees up, curling his hands into his crotch.

I’ve got no time to sit here and hurt, damn it. What do I have to do next?

A soft light shone from the top of the two-meter wide cylinder. Its ruddy glow revealed the square, blackened patch where sunlight had hit. Baker looked up at the hatch. The lettering on the inside had charred, but the letters showed up as black against a lighter gray. Baker stood to read the Americ version. The directions for operating the lift were simple enough. He opened the control box near the hatch and pulled the correct switches.

The lift rumbled once, then whined into life. The floorplate descended slowly, stalling intermittently like an old man walking down stairs.

Faster, damn you! He scuffed one boot and then the other against the floor. The top of a hatch appeared in one portion of the wall. He bent down to watch the floor drop past it. Before the lift even stopped moving, he had opened the control box and actuated the cycling switch.

Inside the airlock, he removed the clear protective cap on the exit optics of his glove laser. He squeezed his thumb against the switch alongside his index finger. The low-wattage sighting beam threw a red dot on the wall opposite him. It wavered nervously.