Icehenge

On the threshold of losing interest throughout the book, but still good enough to keep me going. The story was interesting but ultimately without resolution. On some days I don't like that.

I loved "Red Mars" back in the day, and had somewhat diminishing returns from the two subsequent books. It was good to step back into that world, and fascinating to see what Robinson does with a society with a medical treatment that makes people live for a thousand years. The book is divided into several sections, each with a different narrator, and a few hundred years apart. The arc follows the events that may (or may not) involved the creation of a monolith built from ice. Read it for how characters are affected by eternal life, with very non-eternal memories.