I liked this, but it had some problems. The characterization of Charlotte Holmes and Jamie Watson was great, if not a little too spot on. Charlotte seems to have inherited every single personality trait, idiosyncrasy, and like and dislike as her great-great-great grandfather - including the addiction to hard drugs. Still, if you can suspend your disbelief it was fun. The mystery made enough sense, but I did not get that satisfied feeling when it all came together. It was more like "oh, okay sure." The stuff with Jamie's dad wasn't very enjoyable either - I would have cut most of that. Actually, it would have made more sense to me if they were in college or grad school instead of being 16.
At first I didn't like the hints of a romantic relationship between the two leads, but then I thought about how people have seemingly always shipped Holmes and Watson, so maybe I'll count that as a positive.
But the biggest flaw was the sexual assault - why did that need to be in this book at all? Because there's a girl here? I hated it.
Still overall the book was fun and enjoyable. But I don't think I'll be continuing on with the series.