Plot Summary:In 2055, the Italian Professor Archibaldo Tempo put the finishing touches on his extraordinary invention: the first fully functional Time Machine, the Tempo Express. In 2061, \"chronocinetic technology\" received its stamp of approval from the highest international scientific and political authorities. In 2064, the first commercial spaciotemporal trip was undertaken. Two years later, however, Professor Tempo mysteriously disappeared on a routine trip to the Middle Ages. Happily, his life's work was preserved through the selfless hard work of his wife Arabella. In 2068, the date our stories unfold.