Franz and Albert, two young travelers in Rome, are trying to secure a carriage to enjoy the Carnival. The landlord, Signor Pastrini, informs them that carriages are difficult to obtain during the Carnival period, but he manages to get one for them. Franz and Albert plan their day, intending to visit famous Roman sites like Saint Peter's Basilica and the Colosseum. However, Pastrini warns them of a dangerous bandit named Luigi Vampa, making Franz curious about his story. Pastrini then begins to recount Vampa's background, highlighting his extraordinary intelligence and early life as a shepherd boy who quickly learned to read and write. Despite the warnings, Albert remains adventurous, while Franz is more cautious.
Pastini continues with a rich and detailed backstory to Luigi Vampa, a young and ambitious shepherd who eventually becomes a notorious bandit leader. It begins by introducing Vampa and Teresa, childhood friends who grew up together herding sheep in the countryside near Rome. Vampa, even as a child, displays a natural independence and a sharp mind, which sets him apart from other boys his age. Teresa, on the other hand, is beautiful and coquettish, enjoying the attention and gifts Vampa provides her from his small earnings.
As they grow older, their bond deepens, though they never openly declare their love. Vampa is portrayed as a skilled and determined individual, who practices with a gun he receives, honing his marksmanship to perfection. His reputation as a capable and fearless young man spreads, and his relationship with Teresa becomes the subject of local admiration and respect.
The narrative takes a darker turn with the introduction of Cucumetto, a brutal bandit leader who terrorizes the region. Cucumetto's savagery is exemplified in the tragic tale of Carlini, one of his followers, who kills his own lover, Rita, to spare her from the horrors of being shared among the bandits after Cucumetto abducts her. This story sets the tone for the ruthless world in which Vampa and Teresa live.
As Vampa grows into his role, his fate becomes entwined with that of the bandits. After saving Cucumetto's life by hiding him from pursuing carbineers, Vampa refuses Cucumetto's offer of gold as a reward, showing his pride and integrity. However, this act of mercy comes back to haunt him when Cucumetto later attempts to abduct Teresa. Vampa's skill with his rifle saves her, and he kills Cucumetto, marking a significant turning point in his life.
Vampa then takes Cucumetto's place as the leader of the bandits, fully embracing the life of an outlaw. Teresa, dressed in the stolen finery of the Count of San-Felice’s daughter, follows Vampa into the forest, where he is accepted as the new captain of the bandits. The chapter ends with Vampa's rise to power, his transformation from a shepherd to a feared bandit leader, and the solidification of his bond with Teresa, who is now his companion in a life of crime.
The narrative is interspersed with moments of reflection and tension, illustrating the psychological and emotional complexities of the characters, particularly Vampa, who transitions from a simple shepherd to a formidable and strategic leader of outlaws. The chapter highlights themes of love, ambition, betrayal, and the inevitability of fate, set against the backdrop of a lawless and dangerous world.