In 1931, while studying the crater, Francis Beresford-Hope, Marwell O'Brien, and Henrik Mellberg discovered an ancient artifact in a diamond mine. Gathering a group of twelve more men to follow the map on the artifact, they traveled north and discovered the Tomb of the Gods, where most of the expedition perished. Knowing the need to keep their discovery a secret from the world, the three men broke the key into three pieces and split to different parts of the world.