Recovering from the strict editorial grip of the Comics Code Authority on American horror comics in the 1950's, the 1960's and 1970's saw a new wave of horror comics published. This coincided with a relative boom of suspense, Fortean and science fiction television series around the same time, so it might have been only natural that the genres in both mediums would begin to overlap. Boris Karloff's Tales of Mystery, Ripley’s Believe it or Not, and The Outer Limits all gained illustrated counterparts. Several stories were later collected and reprinted in comic digests.