Stuart Gibbs 
Last Musketeer #3: Double Cross 

The past, present, and future are all at stake in this final book in the thrilling time travel adventure trilogy from New York Timesbestselling Charlie Thorne and Spy School author Stuart Gibbs.Greg Rich should feel invincible. After all, hes traveled through time, become one of the legendary Musketeers, andmost recentlyprevented the Spanish army from attacking Paris.Instead, he and his friends are languishing in prison, having fallen into a trap set by Milady and the Prince of Cond. But Greg didnt come to the seventeenth century to sit in a jail cell and await execution.He, Aramis, Athos, and Porthos need to get to King Louis, who is in immediate danger of being overthrown by the scheming prince. To save the king and history itself, the boys must break out of prison, defend Louis, and return Greg and his parents to the twenty-first century before its too late.Don’t miss the thrilling Last Musketeer trilogy from Spy School author Stuart Gibbs!