^^^those be them. after reviewing them, only 2 of the books i really liked. #2 and #3 (i think) we're sci-fi, time and space travelling stories...not a big fan. but the first book (the origin and the mousers) and the fourth book, the one where they based the whole farm scene in the movie on (but it's leo rather than raph who gets injured).
these books were so good and serious. as much as i love the OG cartoon, i think they ruined the concept by toning it down and making it more child-friendly (i know...it's a cartoon), and therefore limited the potential of the movie.
i also like how they all had red.