The Uninvited

The first alien message arrived as a pressure on the navigation display.

There was no voice, no recognizable language, not even a frequency Terran communications equipment knew how to classify. A narrow block of unfamiliar geometry appeared at the edge of the Wayfarer’s sensor field. It repeated precisely every eleven seconds, followed by a complex modulation that made the ship’s translation software display one honest sentence:

▌NO INTERPRETATION AVAILABLE.

Vale thought it was a malfunction. Then the proximity alarm sounded.

One vessel had arrived beyond their forward arc. It was enormous, with a heavy angular silhouette and armored surfaces broken by amber points of light. Two more shapes emerged behind it, smaller but no less intimidating. They held position while the first ship turned toward the Wayfarer.

“Military,” Vale said.

“How can you tell?” Serrin asked.

“Look at it.”

He enlarged the image. Protruding structures along the hull could have been radiators, antennae or weapons. From the pilot’s chair they looked like gun batteries. Something bright tracked across one of them, and the Wayfarer’s threat software drew a red cone between the alien ship and their cockpit.

▌POSSIBLE TARGET ACQUISITION.

Serrin leaned closer. “Possible isn’t confirmed.”

“Possible is enough.”

The geometric message repeated. Eleven seconds. Eleven seconds. Every time, the ship’s software failed to turn it into anything meaningful.

Serrin tried a simple mathematical reply. Prime numbers, then a repeating hydrogen-line reference, then the ship’s own location. No answer came back in a form they could recognize. A new pattern replaced the old one and rippled across every active channel.

The Wayfarer’s warning lights turned amber.

“Now they’re jamming us,” Vale said.

“Or answering.”

The largest vessel moved nearer. Not quickly, not at first. It advanced with the unhurried certainty of something that did not expect resistance.

Vale disengaged the survey tether, turned the ship hard to starboard and fired the drive. The Wayfarer leapt away. For three seconds the contact vanished behind the distortion of their acceleration field.

Then the same enormous silhouette appeared astern.

“They followed.”

Serrin gripped the console. She had spent her life imagining humanity’s first encounter with another intelligence. She had expected a careful exchange, patient scientists, maybe months spent finding a common vocabulary. She had never pictured herself trying to make out the shape of weapons on a warship that outweighed her vessel a hundred times over.

“Send them our research records,” she said. “Let them see what we were doing.”

“I am not sending unknown warships our systems data.”

“Then send the waveform.”

“Done.”

The reply came almost instantly. The unfamiliar pattern accelerated, repeating not every eleven seconds now but every two. The alien vessel drew closer, and the Terran console marked another red cone across the stern.

▌PURSUIT LIKELY.

Vale increased thrust. Their only chance lay through an old chain of mining debris and shattered rock where the Wayfarer’s smaller profile might help it outmaneuver whatever followed. He rolled the ship beneath a turning fragment, pulled up between two slabs of stone and watched the automated proximity guards flash warnings at him one after another.

Behind them, the great ship altered course without firing.

Hours passed. The vessel remained at the edge of sensor range. Sometimes it closed. Sometimes it fell back. The strange transmissions never stopped.

Serrin began to notice their structure. Each burst followed an apparent change in their drive output. When Vale throttled down, the pattern softened. When he pushed the drive for speed, it returned more urgently. It might have been a threat. It might have been an instruction. There was no way to know.

“What if they’re telling us to stop?” she asked.

“They can ask us in a language we speak.”

“They don’t know our language.”

“Then they should stop chasing us.”

A new message arrived: a line, a branching shape, then three nested spirals. It flooded their receiver for half a second before going silent.

The Wayfarer logged the signal for later analysis.

Vale selected a route toward the Terran home system. He hoped the strangers would lose interest long before he reached inhabited space.

The great warship stayed behind them, patient and terrible against the stars.

Until, at the farthest surveyed reaches of the system, it did something neither human expected.

It turned away.