Geronimo Stilton Journey #4 Lost in Time

Join Geronimo on a thrilling quest through the past!
I couldn't believe it.
I, Geronimo Stilton, had to travel back in time to save a friend!
Professor Paws von Volt needed my help.
He had traveled to the past alone to prove that an artifact in the Egyptian Mouseum was genuine -- and now he was lost in time!
My friends and I boarded the professor's newest time machine to go find him, and ended up on a crazy trip through history.
We met Cleopatra, Genghis Khan, famouse poet Dante, Queen Elizabeth I, and more.
It was a fabumouse journey!
But could we find the professor and make it back to the present?