Mahendra calls ghosts or spirits a figment of the imagination. What happens to him on a full-moon night?

Mahendra calls ghosts or spirits a fabrication of somebody’s thoughts because Iswaran had told him that they were living on a funeral site and kept narrating stories of various ghosts to him which he had faced.
On a full moon night, Mahendra woke up from his sleep and could hear a low groan close to his window. He thought that it was a cat pouncing around for a mice. But the sound was too deep and did not seem like a cat. He avoided looking outside as he did not want to counter whatever was there. He wanted to avoid that sight which was breath taking.
But the groaning became louder and less faint. He could not resist that noise any more so he lowered himself out of the windowsill .he looked out at the moonlight outside and saw a dark cloudy figure holding a bundle. He started sweating due to fear and fell back on the pillow, gasping.

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