Triplanetary

Intergalactic Adventure Awaits.
E. E. "Doc" Smith is often referred to as the father of Space Opera. The Lensman series is considered one of the two greatest science fiction series of all time coming in behind only Asimov's Foundation series in its ranking. Here is the exciting first book in that ground breaking series Triplanetary.
The Eddorians, a dictatorial, power-hungry race, enter our universe from an alternate space-time continuum after observing our galaxy and its sister galaxy passing through one another. This will result in the formation of billions of planets and the development of life. Dominance over these new life forms would allow the Eddorians to satisfy their lust for power and control. The adventure begins.

By E. E. "Doc" Smith