[3] In 1953 former referee Roberto Rangel showed a magazine he bought called Los Espectros de Ultratumba (Spanish for "The Spectres from Beyond the Grave)") to local promoter Jesús Garza Hernández.

[1] Working with the promoter Hernández began to develop the Espectro de Ultratumba character further, adding in a large degree of theatrics to his matches, including using an actual coffin as part of his entrance.

[4] The spectacle of the entrance combined with the showmanship of Hernández himself made the Espectro de Ultratumba character very popular with the locals.

The Mexico City boxing and wrestling commission requested that he removed the "Ultratumba" from his name and would not allow him to be carried to the ring in a coffin, worried that it would be too scary for kids in attendance.

[5] During his early days in EMLL he struck up an in-ring partnership with Karloff Lagarde and an out of the ring friendship that lasted for the rest of their lives.

[3] On April 21, 1957, Espectro defeated Bobby Bonales to win the vacant Mexican National Light Heavyweight Championship.

[7] Over the summer of 1958 Espectro began a long running feud against Torbellino Blanco ("White Whirlwind") that was initially focused on the Mexican National Light Heavyweight Championship, but soon turned into something more personal.

[4][8][9] The following year, at the EMLL 26th Anniversary Show Hernández voluntarily removed the Espectro mask, announcing that he was retiring.

[4] In 1974 he lost a Lucha de Apuesta match to Huracán Ramírez and was forced to have his hair shaved off as a result.