When a wealthy aunt offers to adopt one of the March girls, ten-year-old Jo decides the best thing to do is sacrifice herself.

Twin siblings Princess Gusty Ox and Prince Marvin fight constantly until the court wizard sends them on a challenge that requires the royal pair to cooperate.

Benny anticipates making friends with the new kid down the street, but when he finds out that she's a girl, he is very disappointed.

The Alden children travel on a Mississippi paddle-wheel steamer to visit an old family friend in his cabin near Hannibal, Missouri, and try to discover who is responsible for the mysterious activities near the house.

When the Aldens go to the Pickering Natural History Museum to assist with the opening of a dinosaur exhibit, their work is hampered by a series of mysterious happenings.

The Aldens try to help a visiting Russian gymnast who is surrounded by mysterious people and events and who seems to have a secret.

Psyhcologist Callie Carlson lives in the lush Florida Keys. Some believe it's paradise. Callie, a young woman afraid of the sea does not agree. Her brother has been charged with murdeing the crew of a boat he found mysteriously adrift off the coast. With the help of a former Navy S.E.A.L., Chase Mattingly, Callie must find a way to prove her brother's innocence.

Peter, nine, Mary, ten, and their dog, Hank, journey into biblical history to Babylon, where they meet Daniel and see Michael, the archangel, protect him in the lions' den.