The Shadow Out of Time (Prohyptikon Value Classics)

One of the feature stories of the Cthulhu Mythos, "The Shadow Out of Time" is the tale of a professor of political economics that is thrown into a mind-shattering journey through time and space, while his body is held hostage by an alien mind. Horrified and panic-stricken by the implications of his experiences, he hopes against all reason and evidence that he has merely lost his mind.