"Frustrated in his search for the lady who belongs to the glass slipper, Prince Patrick turns to Kara's father, the shoemaker, to ask who made the glass slippers; it can only have been a fairy godmother, but Kara is determined to help, and she enlists her friend Zed and his pet goat in the search--an adventure that could end up with the children thrown into the dungeon, because there is a conspiracy afoot, and the chief conspirator is in the heart...

Cousins Patrick and Beth work with Allan Pinkerton and Kate Warne, the first female detective, to protect Abraham Lincoln from an assassination plot as he travels by train to Washington, D.C., for his inauguration.