As the group hides out in the maze-like slums, Perla contemplates her role in the prophecy while Néro devises a last-ditch plan to keep her safe.

In possession of the Witch's stone, Horace enters the citadel. Perla confesses to the prince and, despite warnings, Néro lingers in the underworld.

With a new handmaid at her side, Hortense reveals her ruthless streak. Néro tracks down Horace and an enfeebled Azel, in dire need of water.

Néro reckons with an old friend and his past. Rochemort faces serious allegations, but the approach of the penitents could shift loyalties for everyone.

Having reached Havreval, the group wrestles with uneasy questions about their hosts. An unexpected reappearance forces Rochemort to take bloody action.

The group faces the wrath of the penitents. Rochemort tries to improve his standing with the prince. On the road, Néro begins to show troubling symptoms.

The convoy starts its journey to Ségur with Rochemort's killers in relentless pursuit. Confronted with enemies, Néro makes a seemingly ruthless choice.

When Néro is betrayed by his ruthless master to a mysterious witch, the assassin must reunite with Perla, the long-lost daughter he abandoned at birth.