"Something will happen to that man H. You mark my words. Better to get between the metals when an express is due, than block the way of the spirit."
We tend to think of Doyle as the creator of the virtuous Sherlock Holmes, but he was also the creator of all the dastardly murderers from those stories. He could go there! It's hard not to see this as a veiled wish that harm come to Houdini, if for no other reason than to prove this existence of avenging spirits. Although the idea of Houdini being pushed in front of an express train seems more like a tactic a person would employ than a spirit.
Dark Doyle indeed.
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