Guy de Maupassant and his double

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While Maupassant was writing in his study one night, he heard the door open. His servant had orders not to let anyone in while he was writing. Who could it be? When he turned to see who it was, he was terrified to see himself sitting down and dictating his writing. This wasn’t the only episode of this kind. He believed mysterious and threatening beings were by his side, as he described in his story The Horla. Maupassant died in 1893, consumed by incurable madness.