Fans of Rowen’s Living in Eden series have enjoyed her sense of humor, and Nightshade is a bit of a departure for the author. Gone is the lighter side and the laugh-out-loud moments. What remains, though, is her ability to weave a gripping and original tale. This is an entertaining trip into government-sanctioned mad science and secret societies. If the hero had been a little bit more consistent — he shifts between jerk and confused martyr — readers would be better able to understand Jillian’s desire for him.