A group of aliens have lived on Earth for a generation now, blending in, mostly, but keeping themselves apart, posing as tourists, campers, travellers, awaiting the day their people will come for them. One of the second generation, who's lost his family, doesn't fit in on Earth but doesn't think he'll fit in on the home planet, either, but seeking a place he makes his way for the secret city he knows others of his kind have built to await the return.
My second Ermshwiller novel, and while I mostly liked the first (even if it was a bit heavy-handed at times) which one's a much odder book and I don't think as successful. It's got some interesting themes but mostly doesn't go deep enough into them, just raises questions. And the story structure feels pretty odd, almost as though it was a series of short stories linked into a novel later, except most of the short stories wouldn't really work as stand-alones, either, because they require too much context (and the POV switches mid-story). Like, the main character lives with someone for a while and then is alone again and out looking for the secret city and then is an outcast and then is travelling with another of his kind, and so on, and it's not like we're skipping ahead, each development happens on screen but I never really felt a sense of "okay yes this is where the story IS, and the last parts obviously were what led up to it." Instead I felt "Oh, we're doing this now? Okay, I guess." and never really connected. Even at the end, there was a resolution, of sorts, but it just sort of... lay there.
Which is a shame because there were times I was really interested to read the story of a second generation alien stranded on Earth, or how they might relate to going home, or their interactions with others of their kind on Earth... just it never happened to be this story I got interested, just hypothetical stories that could be done with that material. Most of the characters don't really feel natural, which, since they're aliens might be kind of the point but still I mostly felt like they made irrational actions just because that was what the plot required.
There's also kind of a weird subplot towards the end with a seeming adult (even if possibly just barely adult) having a mutual crush with a thirteen-year-old girl. It's not the main character and the main character certainly doesn't approve of it but it almost feels like the narrative doesn't entirely disapprove (or at least that its attitude is something like "this certainly isn't a good idea but they don't really know any better so it's kind of cute") Which is definitely a weird feeling to walk away with, again, with an adult and a young teen. I don't think it necessarily crosses a line, it's just a bit WTF.
All in all, I'd call the story okay, two stars.