Book excerpt: Yucatan's Time Portal "Protect the past, save the future." In the ancient land of Yucatan, Marc Rovers uncovers a portal with the power to traverse time. But when a sinister international syndicate threatens to steal this gateway to the past and future, Marc and his assistant Emma must race against time to stop their obsession for world domination – all while facing off against the likes of Nicola Tesla and Adolf Hitler.