#21 — The two following accounts are taken from an article by Vincent H. Gaddis, titled “NOTES ON SUBTERRANEAN SHAFTS”, which appeared on pages 150-151 of the June 1947 issue of AMAZING STORIES magazine:
“…Rising above the Pacific near Acapulco, Mexico, is a sheer rocky cliff, protected from the sea by jagged boulders that make a landing possible only by native canoe. In the face of this cliff is an (almost inaccessible) artificial tunnel, regarded with superstitious dread by the natives. Known as the ‘Cave of the Pirates,’ it was obviously made by a prehistoric, patient race, and since there are no safe anchorage spots nearby it is doubtful that pirates ever used it.
“It has never been fully explored, and it apparently goes back into the earth for an incredible distance. The walls are remarkably smooth and decorated with un-translated inscriptions and figures. Long-delayed echoes reveal its astonishing depth.
“It has been known to the Indians for some years, but they avoid it and tell of strange lights that they have observed near its mouth. Although access to it is difficult, this man-made, vast and unexplored ancient tunnel deserves investigation. Why it was constructed in such a treacherous spot on a barren cliff is itself a mystery.
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