Sarah Andrews's mysteries featuring professional geologist Emily - Em - Hansen offer the combination of an intricate puzzle and believable characters against the backdrop of a scientific world.. "Now in this latest case, Em heads to Utah for a paleontology conference and ends up a suspect in a homicide investigation when her host, a dinosaur expert named George Dishey, is murdered so brutally that the cops won't even tell Em what happened.. "Turning sleuth to clear her own name, Em relies on Officer Thomas B. Raymond of the Salt Lake City PD to help her make sense of what she finds out about the notorious professor, at least insofar as she can trust a cop who is suspicious of her even though he wants to believe her.. "Between the two of them, Em and Raymond must investigate George's professional life in the high-stakes world of dinosaur research - Em's domain - and his personal life as a member of the Mormon faith - which Em must learn about from Raymond. Em must overcome dramatic physical and emotional challenges if she is to escape with her life - and self - intact.