Locomotive 5526, a steam train reportedly built using biological human material using a secret process called “Biofusion.”
Locomotive 5526 is a Pennsylvania Railroad Class T1 steam engine that is supposedly haunting various railroads in the United States of America. According to legend, the engine’s chuffing sounds like a heart beating, making it organic in nature. The train is rumored to be given sentience by secretive technology used by the Pennsylvania Railroad called “Biofusion,” the grotesque process of fusing metal and human DNA to save on fuel costs.
The human used for the process was reportedly a longtime PRR engineer suffering from leukemia, who volunteered for the 5526 program. The project was a complete success, and Locomotive 5526 was born. As the years progressed, the individual used for the experiment began to resent its mechanical body, eventually turning on its masters and consuming them with the mouth inside its smokebox. The engineer had a family and friends, and would never see them again due to being confined to railway tracks for the rest of their days. It’s speculated that consistent exposure to old photos of the engineer’s family is what caused 5526 to resent its new form, the fusion of flesh and steel being more like a tomb. The only way for the once human mass of flesh fused with 5526 to interact with the world is to look out its one searchlight on its front, which resembles the eye of a cyclops. 5526 is a human turned steam locomotive cursed with the gift of immortality, having traded a deadly disease for a metal box it can’t escape from.