I've enjoyed Laura Griffin's Tracers series quite a bit--they're just fast, fun and addictive reads in an interesting setting (Texas and the Delphi Center). (But, do no, I repeat, do not read her first two-book series, Borderline--the characters are unbelievably annoying, especially the main character in the second one.) Jonah is actually one of my favorite characters from this series--he's pretty much a good guy and not a brooding and cranky as some of the other guys in this series. Sophie would drive me crazy if I hadn't read the rest of the series, but with her complete backstory, I found her to be pretty sympathetic. However, had I read this as a paper book and not an ebook, I would have thrown my book against the wall during the inevitable unsexy sex scene in which they have an awful "conversation" in which Sophie tells Jonah that condoms are unnecessary--yet, she has no basis for knowing this! I mean, come on... in this day and age? Really? I mean, condoms don't just prevent pregnancy! Geez... Regardless of this WTFery, this was actually one of the more fun installments of this series, because the main characters already had a fairly significant history and there was no "will they, won't they" silliness happening.