The boys have finished all of the Magic Tree House books we have (they've flown through them reading 4 chapters at a time) and so we needed some more chapter books. Elizabeth got into the attic and found 4 Hardy Boy mysteries. Once the boys found out it was two boys that were brothers and they got involved in mysteries the boys were in. Just into the first chapter and they were hooked. Words are a bit more difficult and chapters quite a bit longer, and it's taking them longer to read, in fact they are back down to just reading two chapters at a time, but they both said they liked the books.
I have to say that I am loving the way the boys are handling all of these summer 'assignments' (reading comprehension sheets, chapter book reading, math sheets/games, situps, bike riding, walking videos)they are getting. Absolutely no complaints. I am very proud of them.