Serpentwyne is the result of long years of experiments and research by people like Kessler. Serpentwyne is extracted from the dangerous Silver Serpent Venom and removes all of the ill effects. Instead, drinking it will now restore a person to full health. The secret of producing the Serpentwyne, together with one of the last Silver Serpents, was entrusted to the Brotherhood of the Rose, so that they produce it for all the ones in need.