"Sean Wyatt never takes a holiday. Not even when he’s in sunny Florida to watch his friend Tommy Schultz give a leisurely academic talk. So, when a mysterious Italian archaeologist alerts them that part of the exhibit where Tommy is speaking could hold clues to the whereabouts of a missing European diamond, he’s intrigued.
But as the clues draw Sean in, the enigma of the missing stone grows deeper than he ever expected. The diamond was once owned by an emperor, but it’s a modern European ganglord who wants it back. Soon, Sean’s jetting between continents again, tailed by an anonymous yet deadly gang willing to kill him and Tommy and anyone who helps them in order to reach the diamond first."