The crew of "Esmeralda" saw with horror their captain's sacrifice, and when "Huáscar" tried another charge, now against "Esmeralda"s bow, Sublieutenant Ignacio Serrano boarded "Huáscar" with ten more men, armed with machetes and rifles but they were massacred by shots from the mounted Gatling guns and the monitor's crew. Serrano was then the only survivor, having received several wounds in the groin. Grau quickly had him picked up and carried to the infirmary in a state of shock, where they left him next to the dying petty officer Aldea.