When, in the process of testing his newest time machine, Professor von Volt accidently brings a triceratops, Helen of Troy, Attila the Hun, Charlemagne, and Christopher Columbus to present day New Mouse City, it is up to Geronimo and his friends to return them all to their own times and places--without being eaten by a T-Rex or skewered by Trojan warriors.
Mice -- Juvenile fiction
Scientists -- Juvenile fiction
Stilton, Geronimo -- Juvenile fiction
Time travel -- Juvenile fiction
Bigolin, Silvia, illustrator
Heim, Julia, translator
Muscillo, Alessandro, illustrator