The Vanish Protocol (en Inglés) - Philip Stengel

In rain-soaked Harrowgate, private investigator Reed Calder takes what looks like an ordinary missing-person case. A frightened woman named Claire Sorrell walks into his office with cash, a Polaroid of her vanished brother Simon Vale, and a story the police have already dismissed as impossible. Simon has been losing records, bank accounts, medical files, and official proof of his own existence piece by piece. Then Reed searches the flat Simon used and finds the first sign that this is not a normal disappearance: a hidden access card stamped VANISH PROTOCOL and a note that reads, They're stripping me out. Don't trust C.

The deeper Reed digs, the worse the truth becomes. Simon worked at Harbor Nine, the old research annex that burned in 1979 and should have stayed buried with its dead. Instead he uncovered archives that still change in real time, names that fade from payrolls and case files, and a system that does not simply kill witnesses. It edits them out of the world. Behind the paper trail waits a machinery of erasure, the Vanish Protocol, the faceless Cleaners, and a lower architecture where records go to die.

As Reed and Claire are dragged toward Harbor Nine's buried vaults, The Vanish Protocol becomes more than a noir mystery. It becomes a conspiracy horror about institutional disappearance, unstable reality, and the terror of learning that a person can be removed so thoroughly the city itself stops agreeing they were ever here.