I read Stevens' most recent book "Those Girls" and while I didn't hate it, the first half of the book (mainly the girls' captivity) was very hard to read, and I feel like this book (about a female abduction) may be similar. How graphic are the scenes in which she is being held captive? I'm not squeamish, but I just want to brace myself because I wasn't prepared for the brutality of "Those Girls." Thanks!