McCallum was the manservant of Hartley Harecourt who was murdered in a locked room, which was locked from the inside. He wasn't in fact dead. Harecourt tested one of his new formulae on him. (AUDIO: The Case of the Missing Gasogene)
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McCallum was the manservant of Hartley Harecourt who was murdered in a locked room, which was locked from the inside. He wasn't in fact dead. Harecourt tested one of his new formulae on him. (AUDIO: The Case of the Missing Gasogene)