What are the major twists in Verity's plot?

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Key Plot Twists

1. The autobiography “So Be It” Lowen discovers Verity has written a secret memoir that depicts Verity as manipulative, resentful, and possibly homicidal — including killing one twin daughter, Chastin, and attempting to drown the other, Harper.

2. Verity isn’t as incapacitated as everyone believes Lowen begins to notice inconsistencies around the house — Verity seems to move, interact, know what’s happening — suggesting her comatose condition might be a façade.

3. Jeremy kills Verity After reading the manuscript, Jeremy confronts Verity. Verity drops her pretend condition, leading Jeremy, in rage and uncertainty, to force her to vomit in a way that makes her death look like an accidental pneumonia.

4. Verity’s letter overturns everything Months later, Lowen finds a hidden letter from Verity in which Verity claims the manuscript was fictional — an “antagonistic journaling” exercise to channel the dark side of what she didn’t actually do. She says Harper’s drowning was an accident, and that Jeremy once tried to kill her, prompting her to fake her comatose state out of fear.

5. Lowen destroys the letter In the final twist, Lowen decides not to share the letter with Jeremy. She destroys it, meaning the manuscript — the version in which Verity committed terrible acts — remains the only surviving evidence. That choice leaves the true version of events ambiguous.

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Conclusion

The ending intentionally leaves the reader without a clear, verifiable truth. Verity might be monstrous and murderous, or she might have been writing fiction, testing Jeremy, and spinning lies. Lowen’s decision to destroy the letter means she — and now the reader — live in the version where Verity committed the worst crimes. The ambiguity around what’s real versus what’s fabricated is the final twist.