What is the book Verity about?

"Verity" is a psychological thriller novel by Colleen Hoover. The story follows Lowen Ashleigh, a struggling writer who is offered a lucrative job completing the remaining books in a successful series after the original author, Verity Crawford, is incapacitated following an accident. Lowen goes to the Crawford residence to sort through Verity's notes and outlines, where she discovers a hidden manuscript revealing disturbing truths about Verity's life and the dark secrets she kept. As Lowen delves deeper into the manuscript, she becomes entangled in a web of deception, obsession, and danger. The novel explores themes of trust, manipulation, and the blurred lines between reality and fiction.