Alien Clay

Adrian Tchaikovsky's return to SF after the excellent Final Architecture series is a distinct change of scale. It's set entirely (well, 99.9%) on one planet instead of a vast cosmic canvas, but it also lacks that series' pace and discipline. The story meanders and is just a little bit too baggy - it feels like a novella that has burst its banks. On the plus side, the world feels convincingly alien, the xenobiology that is the main focus of the book is never less than interesting and the chief villain has some sides to his character that lift him out of stock baddy territory. It's a decent read on its own terms, but it's definitely mid-tier Tchaikovsky that doesn't reach the heights of Children Of Time or the Final Architecture.