Some doors should never be opened.
In 1871, beneath an abandoned monastery in northern Spain, Father Tom s Vargas discovers something that should not exist: a black wooden door standing alone in the middle of a sealed stone chamber.
No wall. No frame. Nothing behind it.
Until it knocks.
The door speaks in the voices of the dead. It knows the names of the living. And when it disappears, an impossible photograph reveals a terrifying message:
THE DOOR SURVIVED.
More than a century later, Daniel Mercer has already survived death, grief, and horrors that shattered everything he believed about life and the world beyond it. But when the mysterious black door returns, Daniel discovers that death may not be the greatest threat facing his family.
Beyond the door are other lives.
Lives where different choices were made.
Lives where loved ones never died.
Lives where marriages never failed, tragedies never happened, and every regret might still be undone.
But these are not dreams.
The people on the other side are real.
And they want their lives back.
As alternate versions of the living begin appearing and reality itself starts rewriting history, Daniel and his family are forced to confront an impossible question: If you could step into the life you always wished you had, what would happen to the person already living it?
And what would happen to the life you leave behind?
Because the black door does not give without taking.
Every choice creates another possibility.
Every possibility creates another life.
And somewhere beyond the last door, all of them are waiting.
THE LAST DOOR is a supernatural horror thriller about grief, regret, identity, family, and the terrifying consequences of getting exactly what you thought you wanted. A haunting continuation of the Three Days Dead series, it pushes Daniel Mercer into his most dangerous confrontation yet-one where the monster is not death itself, but the temptation to choose another life.