The alien that would impersonate Conan lived in a planet a vast distance from Earth. Its world and environment was very different than Earth. It violated the law of its society and did not want to face the dire consequences of its actions, and so left its world in a spaceship. It arrived on Earth in the Hyborian Era and quickly discovered that it couldn't breathe the air, but it had a device that enabled it to assume the form of a human being and thus live for a few days more. Many times, its gemstone let the changeling assume the form of several men, although this killed them, until it assumed the form of Warz Bel Doqh.