Raiders of the Universes is a thrilling science fiction novel that takes readers on an exciting journey through space and time. The story follows a group of space explorers who discover a mysterious alien artifact that could hold the key to unlocking the secrets of the universe.

The author, Donald Wandrei, does an excellent job of creating a vivid and imaginative world filled with interesting characters and complex technology. The action is fast-paced and the plot is full of twists and turns that will keep readers on the edge of their seats.

One of the highlights of the book is Wandrei's vivid descriptions of the alien landscapes and creatures that the characters encounter. His attention to detail really brings the story to life and makes the reader feel as though they are right there alongside the protagonists as they explore the far reaches of the galaxy.

Overall, Raiders of the Universes is a captivating and engaging read that will appeal to fans of science fiction and adventure. Wandrei's talent for world-building and storytelling shines through in this exciting novel, making it a must-read for anyone looking for a thrilling space opera.

Book Description:
It was the 34th century and all five of the Federation of Planets around Sol were buzzing with their usual activity when the Raiders appeared. They were indeed Raiders of Universes because they had ravaged many systems before reaching Earth and showed no signs of slowing down in the least. Their weapons were invincible, their greed merciless and their natures completely alien. Indeed 'they' were from another dimension entirely. Eating up entire solar systems and planets, they slowed down just a bit when intelligent life was found on Earth. Not much since they were in a hurry, but just long enough to tell the Earthlings to mine all the Radium ore on Earth and put it conveniently on the surface ...... in six days....or else.