 He instead decided to exploit the natural fortifications on the opposite side of town in order to enter it.He divided his army in such a way that certain groups would be able to constantly attack the walls of the town while another would be able to work on tunneling through the hill.When the hill was finally tunneled through, the Romans entered the town, taking the Fidenates, who had been preoccupied with the attackers at the walls, by surprise and 

Priscus was given the cognomen "Fidenas" because of his victory.