As a baseball fan, I enjoy the Ballpark Mysteries series. The All-Star Joker takes place in Kansas City, a stadium that I have been to several times, so I enjoyed the familiarity of the setting. This mystery involves a practical joker at the All-Star game and Kate, Mike, and Andy have to figure out who it is before the big game starts.
Overall, this is a series that will attract many different readers; baseball fans and mystery fans. If you have a young sports fan who has started reading chapter books, this would be a great series to get them involved with.