The Other Side of Night by Adam Hamdy

The story begins with David Asha reflecting on his greatest regret: his sudden separation from his son, Elliot. Harriet Kealty, a retired police officer, discovers a cryptic message in a secondhand book, leading her to investigate a series of deaths that seem connected to David. As Harriet delves deeper, she uncovers unsettling truths about Ben Elmys, a man who may hold the key to the mysteries surrounding these deaths. The narrative unfolds through various perspectives and formats, including letters, transcripts, and journal entries, creating a complex tapestry of storytelling.