Carus and the Romans - A History of the Roman Empire

Carus was the third praetorian prefect to step into the purple following in the footsteps of macrinus and philip the arab. The two new caesars were neither children nor middle aged men, and simply leave it at that. Luckily, they would start all over again with diocletian, who would bring political stability to the empire. So the demise of carus and his sons didn't turn out to be the worst of all possible scenarios.