content: I have read this book twice now and even liked it better the second time through. There are really three good stories going on here. One with the clouds themselves, one with the ground operation, and one with the politics at home through Hutch. Hutch makes a far better administrator than I ever enjoyed her in the field.The best part about this novel is that it really gives us what we wanted from McDevitt all along - another race! He's mentioned the Nok, but we know nothing about them. We've been through ruins, seen hints, but never before do we get a different culture and society out of it.As well, it moves quickly and is enjoyable to read. I highly recommend this book. It may not change the world, but it's great fun.