
The two companions are fairly faithful to Caesar's portrayal, starting as rival legionaries before rising to centurion rank and becoming fast friends.Wow.

The novels recount the adventures of several maniples of Caesar's legions in Gaul that are whisked away by druid spells to a land of magic loosely based on the Byzantine Empire.

Their description and included quotes are directly pulled from the HBO/BBC/RAI series Rome.

After slaying many of their opponents, the two retreated to the fortifications amidst roaring applause from their comrades, or "covered with glory," as described by Caesar. As the Nervii drew closer to him, Pullo came to his aid. After slaying one of the enemy and driving back the rest, Vorenus lost his footing on the irregular terrain. Just then, Vorenus, following Pullo from the fortifications, reached the site of the mêlée and engaged the enemy in hand-to-hand combat. Pullo cast his javelin into one of the enemies from a short distance, but his belt was simultaneously pierced by a spear, preventing him from drawing his sword, and he was surrounded by other Nervii.

In an effort to outdo Vorenus, Pullo charged out of the fortified camp and attacked the enemy. The episode describes the two as centurions, approaching the first ranks, who shared a bitter personal rivalry, and takes place in 54 BC when the Nervii attacked the legion under Quintus Cicero in their winter quarters in Nervian territory. Vorenus and Pullo appear in Caesar's Commentarii de Bello Gallico, Book 5, Chapter 44.
