Readers join the gang as they explore the ancient ruins, learn about the Incas who called this city home, and use the clues to silence this mystery once and for all.
Readers join the gang as they explore the pyramids, learn about Giza's ancient people, and use the clues to wrap up the mystery of three phantoms haunting the pyramids.
Readers join the gang as they explore the cliff dwellings, learn about the ancient Anasazi who called these dwellings home, and use the clues to solve the mystery.
Readers join the gang as they explore the ancient city, learn about the Romans who called Pompeii home, and discover what happened that fateful day that changed everything.