Well I see I am in the huge minority here, but that's fine.
I think this is an awful book. An absolutely ridiculous story that makes very little sense if you give it even a small amount of critical thought. So many inconsistencies and lack of understanding of how science is conducted, or how such a situation in real life would likely transpire. It seems to rely on a "YAY SCIENCE" kind of philosphy, which I despise (at one point, the phrase "I've been mad-sciencing some inventions in the lab" is used). A failed academic/school teacher somehow has expert-like knowledge of multiple scientific instruments and branches of science that he clearly never actually used/researched when he was an academic. The interactions between Grace and Stratt are nonsensical. Why is a schoolteacher thrust into a lab he has never seen before and entrusted with the most important scientific discovery of all time? Why when he finishes his initial examination does he report solely to Stratt, a historian, rather than to a panel of international experts? I won't go further for fear of spoiling the story, but safe to say, it gets worse and worse. Terrible story-telling and awful writing. Definitely one to avoid if you are a scientist yourself or care about vageuely plausible/realistic science fiction.