But in fact Perfidius has few illusions that the mission will be successful, and starts making his own plans to flee Corsica, leaving his men in the lurch and sailing away with all the loot he has purloined from the Corsicans.
But in fact Perfidius has few illusions that the mission will be successful--the Corsican leader was captured by chance and ordering his rearrest is merely for appearance's sake. Perfidius intends to leave Corsica, leaving his men in the lurch and sailing away in the pirate ship with all the loot he has purloined from the Corsicans.