William and Iscia have been sent to Sahara to help the Depository for Impossible Archaeology at a dig. A massive, mysterious orb has landed right in the middle of the desert, and only William can solve the code that will open it. But what if he succeeds? Will he be unleashing a new Pandora’s box on the world?

Old family secrets and codes from outer space have William and Ischia on the hunt for a doomsday machine of apocalyptic proportions in the fourth installment of the internationally acclaimed William Wenton series.