A quick and fun to read short story, I believe I read it in under an hour. The premise is simple, a lone man, a veteran who suffered some pretty bad injuries, is stationed on a deep space lighthouse on a major interstellar shipping lane. He believes he is going crazy hearing strange noises throughout the lighthouse while he tries to sleep, noises that evade his attempts to diagnose and fix them. Is he going crazy or is there is something else at work?
I liked how the story used elements from historical lighthouses and the history around them for this story, with the protagonist talking about them and using them as plot points. I think the author did a good job of showing how stir crazy one might get confined, alone, deep in space with only occasional terse communications with headquarters.
Not really much to complain about, I would read more of this setting. I do wonder how much more could be done with the deep space lighthouse setting but I would be open to finding out. Clearly a wider universe is hinted at, seen from the portals of the lighthouse and hinted at from the man’s injuries physical and psychological from the war he had taken part in.