Adamastor's a Greek-type mythological character invented by the Portuguese poet Luís de Camões in his epic poem Os Lusíadas (first printed in 1572), as a symbol of the forces of nature Portuguese navigators had to overcome during their discoveries. Camões gave his creation a history as one of the Gigantes of Greek mythology who'd been spurned by Tethys, now appearing in the form of a threatening stormcloud to Vasco da Gama and threatening ruin to anyone hardy enough to pass t… (More on Adamastor)