This third entry in Tepper's Arbai sort-of-trilogy is the weakest of the three, but this is possibly a reflection of the incredibly high bar she set for herself with Grass.

Sideshow returns to may of the themes of the previous two books, but it all feels a bit more didactic, with less engaging characters and a weaker, more plodding, story.

If you have read Grass and Raising the Stones, then Sideshow wraps things up reasonably well. Otherwise... Tepper has written better books than this.