3USA TODAY BESTSELLER 2024 ITW Thriller Award Winner Esquire "Best Horror Books of 2023" Pick A haunted paleontologist returns to the museum where his sister was abducted years earlier and is faced with a terrifying and murderous spirit in this chilling novel.Curator of paleontology Dr. Simon Nealy never expected to return to his Pennsylvania hometown, let alone the Hawthorne Museum of Natural History. He was just a boy when his six-year-old sister, Morgan, was abducted from the museum under his watch, and the guilt has haunted Simon ever since. After a recent breakup and the death of the aunt who raised him, Simon feels drawn back to the place where Morgan vanished, in search of the bones they never found. But from the moment he arrives, things aren't what he expected. The Hawthorne is a crumbling ruin, still closed amid the ongoing pandemic, and plummeting toward financial catastrophe. Worse, Simon begins seeing and hearing things he can't explain. Strange animal sounds. Bloody footprints that no living creature could have left. A prehistoric killer looming in the shadows of the museum. Terrified he's losing his grasp on reality, Simon turns to the handwritten research diaries of his predecessor and uncovers a blood-soaked mystery 150 million years in the making that could be the answer to everything.

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