This mystery is part of the Adventurers series, and indeed, it is quite an adventure. When one of the group goes missing while on an assignment, the rest of the gang goes to find and rescue her. There are a few tense moments, but the story also has its fair share of humor, as well as a smart and lovable dog. This mystery also touches on some historic moments. It should appeal to children in the middle grades, and to adults who wish to share some time enjoying mysteries with the young people in their lives, and really, to anyone who is young at heart and likes a good adventure mystery. ( )