María arrives at the Olivares home before dawn, bloodstained and composed, and is ushered in by frightened servants. She ignores their questions and goes upstairs, where Andrés confronts her with accusations and violence. When Andrés tries to force himself on María, she overpowers him with newfound strength, pins him, and becomes consumed by the sound and scent of his blood.

Rejecting the name María, she declares, “My name is Sabine,” and bites Andrés’s throat, drinking deeply as his struggles fade. She experiences a thrilling, borrowed heartbeat and the rush of his emotions in his blood, not yet understanding that her own heart no longer beats and that thirst will soon return.

When Andrés dies, Sabine taunts his corpse, then deliberately spreads fire through the room with an iron lamp and a lantern. The count arrives and recognizes her as “María,” but she corrects him, bares her teeth, and kills him, finding his blood thin and disappointing.

As flames take hold, the countess emerges in panic. Sabine watches coldly as the countess stumbles, falls down the stairs, and breaks her neck. The servants flee while the Olivares house burns, consuming Sabine’s former life.

Knowing the authorities will soon arrive, Sabine heads to the stables, breaks open the locked door, and attempts to take Andrés’s horse. The animal panics, seemingly sensing her transformed nature, so she abandons it. Without looking back at the burning estate, she leaves León, fully shedding the name María and embracing Sabine.