Hot on the Trail in Ancient Egypt

Twins, Josh and Emma, follow their little sister into a creepy Good Times Travel Agency where the peculiar shop owner encourages them to open one of his guidebooks. Suddenly, they find themselves transported to ancient Egypt! Before they can even get their bearings, Josh is dragged away to help build a pyramid for the king. Emma and Libby succeed in rescuing him but then get accused of being tomb raiders! Will the children manage to finish reading the entire guidebook - their only way back home - before they get arrested?