Science fiction based around the marine environment, yay! Naturally I was pre-disposed to like this and I really really do. I love how interconnected it is, a novel like an ecosystem, all the moving parts impacting on each other and the effects of each contact rippling out into the wider world. Sometimes, I admit, this focus on wider interactions did make parts of this novel a little unfocused, but that is a small quibble, because the mix of character and concept and idea here is so appealing.