Oak Hill Mansion by Shain Haggadone

Oak Hill wasn’t the kind of town where people vanished—until the summer of 1969, when three boys disappeared near the bowling alley without a trace. Years earlier, in 1947, a secret government pact with Elder Roberts and Edward Han had turned the Han Estate into a covert site for human experimentation.

Now, in 2025, the Riley family moves into a house beside the long-abandoned estate, seeking a fresh start. But eerie warnings, strange occurrences, and the weight of history begin to unravel their peace. When brothers Alex and Michael, along with friend Kevin Ledbetter, discover tunnels beneath the Han property, they uncover remnants of the missing boys—and something far worse.

As buried truths surface, the town's dark past ties together Nazi scientists, Operation Paperclip, and decades of disappearances. The Han Estate burns, but its secrets refuse to die. Haunted by the horrors uncovered, the Rileys flee Oak Hill, but the echoes of the past still whisper beneath the soil, waiting to rise again.