Paperback
Spanish language
Published by Abraxas Press.
An important early classic of fantasy/sci-fi. [Main story:] The ill effects of a soul-destroying play, to read which brings doom. A discovery that changes living flesh to stone. The mad adherents of a cult of evil powers from beyond. A lost traveler is suddenly 400 years in the past. Great writing; powerful emotions. Chambers wrote mainly conventional stuff, but not here.
The clues were easy to follow, until it's explicitly stated at the end. Great story. Unexpected.
