Raiders of the Universes

Published in the 34th century, 'Raiders of the Universes' by Donald Wandrei is a science fiction novel that follows the invasion of Earth by a ruthless alien race from another dimension. These Raiders, known for their invincible weapons and merciless greed, threaten to consume entire solar systems. They demand that Earthlings mine all the Radium ore within six days, setting a dire ultimatum that propels the narrative forward. The book is notable for its imaginative exploration of interdimensional conflict and its impact on humanity.