The Blood of the Immortals - Françoise Ruscak

An expedition arrives on the planet Verfebro in search of lifes greatest ambition: immortality.What if the key to eternal life were only a few planetary systems away? A motley crew is sent to Verfebro in search of a mystifying elixir—one that runs through the veins of a ferocious local species: the Dracs. The members of the expedition will do anything to uncover the mysteries of life on this planet, no matter the cost.