This is the 2nd in the Em Hansen series. I think I enjoyed the 1st “Tensleep” more as this one took a while to get going. Em is a geologist, in the 1st book she is working on a site in Wyoming but in this one she’s moved to an office in Denver (surprise…) and people start falling out of windows. Well plotted and although sometimes Em seems like a different character to the one in the 1st book I’m looking forward to meeting her in the rest of the series. I also like the bits the author writes at the end about her own experiences as a geologist and which scenes from the book are lifted from reality.