This was an excellent book, but I didn't enjoy it as much as I had expected. The writing is solid, as is the story. And it is all quite literary. But as a post apocalypse story fan, I tend toward books a bit more about survival than this one. Here you have madness, on a par with Heart of Darkness, but set in the creepily flooded remnants of London. It makes for a deliciously spooky set, but was not so much about surviving an apocalypse (the society left after most of the world is flooded due to irregularities in the sun seem to be doing just fine, thanks) as it was about a strange neurological time travel that began when people lived in a place so Triassic in nature.