Chico relates an untold chapter of his youth in Veracruz. We discover that he was the assistant of his famous “pharmacist grandfather” (a quack swindler) who, a second Cyrano, serenaded sweethearts for payment (generally aimed at horribly ugly women considered beautiful only by his customers!) and, above all, he was a guide for the American archeologist, Riddle, in his search for a lost Mayan pyramid in the jungle!
Martin Riddle seems to be cameo of Martin Mystere!