It's really a commercial operation since, and this is the first time I see the same book appears in two different collections at the same time, one for teens and one for adults, or even if one keeps a soul children, public are different. While the plot is well done, but it is actually closer to an adventure of a club of four US, with values in the US, as a book for adults. I think only the true fans of Coben, will find them, the others will quickly into the skin of an adult reading a book Teen leaving a disappointing feeling.