These books are really good, and I have enjoyed all in the series so far. There are a couple things that I have a bit of trouble with. One is the use of unfamiliar phraseology such as "... he attacked Dan with an oath." What is that (an oath)? I am not familiar with that terminology. Second, there are occasional firearms operations references that are not quite accurate. An example: "... she racked the safety." No, she may have racked the slide, or flipped the safety off. There are many other similar examples of both of these things. Tells me that perhaps the people providing proofreading services aren't 100% familiar with the subject matter. Are these things a big deal? No way! They do not substantially detract from the overall story or its impact. But only by bringing these nits to light, will the author know that there are details that could use a bit more polish. (And, for the record, these are not the books that have this sort of issue.) Don't let my nit-picking on minor details deter you from picking any one of these books. I do think you will enjoy them.