
I really wanted to like this book better than I did. The very first page seemed designed to appeal to me, a transcript of a radio interview with Nobel Prizewinner Valentine Pillman:
Interviewer:… I suppose that your first important discovery, Dr. Pillman, was the celebrated Pillman radiant?
Dr. Pillman: I wouldn't say so. The Pillman radiant wasn't my first discovery, it wasn't important, and, strictly speaking, it wasn't a discovery. It's not entirely mine either.
If you're like me, you've already cast Bob Elliott as the interviewer, and Ray Goulding as Dr. Pillman, delivering those lines with impeccable comic timing.
Unfortunately, the rest of the book doesn't continue with that nostalgic wackiness. Although Dr. Pillman does show up later to explain the book's title.
Aliens have made a brief visit to Earth years ago, in six "Visit Zones". The Zones are dangerous, filled with mysterious and incomprehensible objects and forces. Visitors are subject to violence, hallucinations, and changes to their biology. Yet, the "stalkers" are tempted by possibilities of retrieving some alien technology that will make them rich. For most, it's a bad bet.
Pillman's guess is that the aliens landed on Earth simply as a "roadside picnic" spot, a place to stretch their legs (or whatever), have some lunch, see the sights, and then carry on to their actual destination. And so, humanity is left with trying to make the most of alien litter.
The main character is Redrick "Red" Schuhart, one of those stalkers. The book details his three expeditions into one of the Zones, filled with danger and disaster. In the final installment, he's in search of the "Golden Sphere", which is alleged to grant the owner's wishes. No spoilers, but this is not the kind of book where everyone, or anyone, lives happily ever after.
Don't let my low rating dissuade you from reading this. Theodore Sturgeon gave an earlier version (Soviet-censored) a rave; Ursula K. Leguin wrote the forward for this recent definitive, restored, edition; she finds it swell. The Wikipedia page lists the many other honors and plaudits the book has received over the years.