This is a wonderful series for any age! I think it's listed in the teen/youth section, but it is a great series for anyone. Will becomes a ranger's apprentice without really understanding exactly what it is that rangers do. The first book is his initiation into the group, which is endearing and humorous. The rangers are secretive, serious (in their duties and pranks on one another) and sarcastic. The relationships between Will and Halt as well as between Will and the other wards of the castle are some of the most interesting I have come across in ages. Just when you think the book might be slowing down, there is another adventure waiting and another twist in the story. These books are well written and fun!