The Observatory on the Hill

The observatory had been in Nico's family for three generations, which meant it was old and slightly draughty and the telescope made a grinding noise when you turned it that his grandfather had always said was character and his mother said was a problem they could not afford to fix.

Nico was eleven and had been coming up here since he was small enough to be carried. He knew every creak in the wooden floor and every wobble in the viewing ladder and exactly which angle to hold the secondary mirror at to stop it rattling in the wind. He knew the sky the way some kids knew football statistics or song lyrics, not because he had been told to learn it but because he genuinely could not stop looking at it.

His mother ran the observatory as a small business, offering evening tours to schools and tourist groups and anyone else who wanted to look at the stars through a proper telescope. His grandfather, who had built the place, had spent forty years mapping the same patch of sky in meticulous detail and had filled twelve large notebooks with his observations. Those notebooks sat on the shelf above the main console and Nico had read all of them twice.

The signal appeared on a Tuesday in October, at eleven minutes past nine in the evening, when Nico was supposed to be in bed.

He was not in bed. He was at the console, which he was allowed to use as long as he did not touch the calibration settings, running a standard sweep of Sector Nine, which was the patch of sky his grandfather had mapped most thoroughly and which Nico had adopted as his own particular area of interest. Sector Nine was not especially dramatic as patches of sky went. No famous nebulae, no particularly bright star clusters. Just a dense, quiet region of space that rewarded careful looking.

The signal showed up on the radio frequency monitor as a spike, sharp and clean and repeating. Not random noise, which spread across frequencies the way static does. This was a single frequency, pulsing at perfectly even intervals.

Nico stared at the monitor for a long time without moving.

Then he got out his grandfather's twelfth notebook, the most recent one, and found the section on Sector Nine. His grandfather had noted a faint anomaly in the same frequency range eighteen months ago and had written next to it: Probably interference from the weather station on the ridge. Worth monitoring.

The weather station on the ridge had been shut down six months ago. Nico knew this because his mother had mentioned it.

He pulled up the recording function and started logging the signal. Then he got out his own notebook, a plain green one he had bought himself, and started writing down everything he could observe. Frequency. Pulse interval. Duration of each pulse. Pattern, if there was one.

There was a pattern.

It took him forty minutes to see it but it was there. The pulses were not all the same length. Some were short and some were long and they repeated in groups of seven, each group identical to the last. Short short long short long long short. Then a gap. Then the same sequence again.

Nico sat back in his chair and looked at what he had written.

Something was sending a signal from Sector Nine. Something that was using a pattern. And patterns, his grandfather had written in the very first notebook, are the fingerprints of intention. Random things do not make patterns. Only things that mean something do.

He checked the clock. It was nearly midnight. He was very much supposed to be in bed.

He stayed at the console until two in the morning, logging every pulse. By the time he finally went to bed the green notebook had fourteen pages of observations in it and the signal had not skipped once, not varied its interval by even a fraction of a second, not changed its frequency by a single hertz. It was as steady and deliberate as breathing.