The popular children's story appears in graphic novel form for the first time in the U.S., with stories never seen in America. This time, Geronimo Stilton and friends must travel back in time to Ancient Egypt The Pirate cats, jealous that the face of a man was placed on the body of the Sphinx, are determined to coerce the Pharaoh into changing the face of this monument. It's up to Geronimo and co. to travel back in time and stop the Pirate Cats before it's too late.

The Pirate Cats have had their plans foiled by Geronimo Stilton time and time again, due to the help from Geronimo's friend Professor Volt. The Pirate Cats decide to better their offs by getting rid of Professor Volt; kidnapping him and leaving him in the Cretaceous Period - a time when the earth was occupied by dinosaurs Geronimo and his friends must travel back in time 140 million years to save Professor Volt from literally becoming a part of history

The Pirate Cats, led by Tersilla of Catatonia, are hitting Geronimo Stilton where he lives They have traveled back in time in order to steal Johannes Gutenberg's original printing press What mad scheme do the Pirate Cats have for the Purr-loined presses? Geronimo Stilton and his friends intend to find out when they travel to the city of Mainz, Germany in the year 1455 to stop the Pirate Cats from tampering with history

What begins as a relaxing vacation turns into a time-traveling adventure, where Geronimo Stilton must travel to Khanbalik, or "The City of Khan" (modern day Beijing) in 13th Century China where he encounters Kublai Khan and Marco Polo. This time, Geronimo and friends must stop the Pirate Cats from corrupting Marco Polo's famous book "The Travels of Marco Polo," and changing history forever