Crime novelist Jon Michelet has written several books on Norway’s far-right extremism. In one, a 1989 novel called “Thygesen’s Terrorist,” he depicted a massacre carried out on an island near Oslo by a disturbed far-right extremist.

After the recent tragedy on the island of Utoya, Michelet is spooked by the similarities between his book and the actions of Anders Behring Breivik, the Telegraph reports.

“It is terrible and terrifying that fiction became a grim reality in Utoya,” Michelet told the Norwegian broadcaster NRK.

He said his book “was a warning that the warped political theories based on conspiracies and hatred can lead individuals to commit extreme acts.”

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