Salt-Man Z, on 02 June 2014 - 07:16 PM, said:
Are you thinking of Chasm City? Coz Redemption Ark certainly doesn't stand on its own.
It doesn't hook into Revelation Space directly the way a normal sequel would, but that just makes it all the more important to remember what went on in RS so that when things do start to connect, you know what the hell is happening.
That said, I reckon refreshing on a summary would probably fine, although frankly I can't see a good reason not to reread Revelation Space anyway...