Something was terrorizing a children’s ward in a hospital. Turns out a demon had possessed a doll and by the time they figured it out no one wanted to enter the ward.
An iron sword was fashioned and during the day while the doll sat quiet the iron sword pierced the doll. The demon tried to escape but the sword did its duty.
In a last ditch effort the demon turned himself into gold. Knowing the greed of man it hoped that in the future someone would take the ugly iron sword out of the gold body and release him.