Volume #46, "A Date with Dad" ended with Eugene finding his father Leonard—an action-adventure that involved spy agencies, a train crash, and other exciting elements. The story continues in Volume #47 with the introduction of a new villain, Dalton, who is an archeologist competitor of Eugene's father and is trying to capture Leonard. Also in this volume, you'll hear teenager Mandy struggling with her parents' separation.Through 5/31/07, this volume will be offered as a “For a friend” pack—you'll get two sets of 4 CDs for the price of 1