the faces under the floor in Bélmez. they smashed the first one and it grew back

My tía is from Jaén province so I grew up half-believing this one. Bélmez de la Moraleda, August 1971, Calle Real 5. María Gómez says a face appears in her concrete kitchen floor. Just... a face, staring up. Husband and son take a pickaxe to it, pour new concrete. New face comes back. Then more. Men……