A cursory glance at the Wikipedia page for “Revelation Space” gives you some (spoilery) indication of the sort of world-building going on here - there's factions vying for terraforming control of Resurgam, ancient civilisations, star-destroying weaponry infected with viruses, cloned personalities, ectoptics, buried cities, Pattern Jugglers, the Shrouders, the Event - but this heady stuff is all accompanied by a solid (and very well plotted) mystery-box narrative which turns out to be a walkthrough of one of the proposed solutions to...well, I'm sure other reviewers will blow the surprise. Mercifully, he builds in subtle recaps as he goes along and the lore is delicious enough to keep you hooked. I felt Sylveste’s eventual descent into Cerberus had more than a little feel of “Rendezvous With Rama” to it and kudos for Khouri and Pascale deciding to just get pissed when they’re realise they’re on a one-way trip to the neutron star Hades. There is humour and any sex or violence is painted in abstract strokes and, frankly, comes across as more mature for it. The novel ends in the SF version of a battering ram on a mysterious castle, Reynolds throwing in a bit of horror in a surgical unit and a tsunami of rats and with various characters asking each other "is he on our side?" but since all the throw-forwards are actually answered and the narrative revolves around a genuine, and interesting, scientific question any first novel birthing pangs are forgiveable. Mostly, this puts me in the mood for more from this incredible universe and from the groaning Alastair Reynolds shelf in Foyles.