Amy and Dan, following a clue found in Book 3, set out to uncover details about the origins of the rivalry between the Tomas and Ekaterina branches of their family, not realizing they are headed right into the hands of the enemy.
Lucy, an adopted child from Mexico, is convinced that her family background is too complicated for her to make the family tree she is supposed to create for a homework assignment.
Describes the different people that make up a family and explains how children can learn more about their relatives by making and studying a family tree.
Carole becomes curious about her family tree when she goes to visit relatives in Minnesota. She discovers a secret, and begins to question where she's come from.
Kim Murray, a California girl unsatisfied with her modern life, studies ballet and fencing and dreams of older times, and when she travels to Europe to learn more about her family's roots, she quickly finds herself caught up in an adventure and learning surprising details about her bloodline.