Libby sits in Nico's room, venting about men and the Society's kill-or-be-killed initiation while Nico throws knives blindfolded. Libby reflects on her breakup with Ezra and her growing envy of Tristan's ability to see reality's hidden layers. Nico challenges her to stop diminishing herself and stop seeking completion in others, telling her she is already enough and should embrace being dangerous rather than apologizing for it.

The two share a candid exchange about the consequences of joining the Society. Nico admits he wouldn't have come if they hadn't recruited Libby, and now he carries the stain of complicity in murder. They acknowledge that their fates are inseverable—bound in a mirror game where each reflects the other's choices. Both admit they would kill to protect what they have, and agree they've gone too far to stop now. Libby confirms her breakup with Ezra is final, and Nico makes no effort to hide his satisfaction.

Alone in her room, Libby reflects on how fundamentally she has changed since joining the Society. She feels no guilt over what happened with Tristan and Parisa, seeing it as a transitional act. She is consumed by ambition and the question of whether her power comes at the cost of others' existence—possibly even her dead sister's life. The library continues to deny her requests about longevity, though she senses its resolve weakening.

Libby's thoughts turn to Callum's terrifying power, particularly his contribution to the house wards: a vacuum of suspended human feeling that creates functional paralysis. She recalls how Callum once broke Parisa's mind, and realizes with growing dread that leaving Tristan alone with Callum was a dangerous gamble. If Tristan fails to kill Callum, Callum will know they marked him for death and there will be consequences.

As Libby leaps from her bed to intervene, the air in her room shifts unnaturally. The molecules slow and become foreign; the sentient house seems to reject her presence. She feels claustrophobic compression and her lungs refuse to expand—an attack she cannot see or identify, her fundamental weakness. She hears a familiar voice asking if she really knows what she agreed to. Then an arm wraps around her waist, dragging her backward. Time rushes back and she finally finds the voice to scream.