I couldn't put this down - it was absolutely terrifying. I knew going in that there was going to be a volcanic disaster - the blurb makes this clear - and waiting for it to happen was incredibly tense. The end of the book was devastating and kept me up at night. I've always wanted to go to Iceland, but I think it's a little too scary for me now. 

Translated from the Icelandic, which was a little challenging at times, but that's the kind of challenge I like so it was fine once I got used to the punctuation.