The Heaven Makers

Strange aliens had invaded Earth thousands of years ago. They were eternal beings who made full sensory movies of wars, of natural disasters - and of the most macacre human horrors - to relieve their endless bordom.
And then, when they finally became jaded by ordenary, run-of-the-mill tragedies, they found new ways of creating their own disaters...just for kicks.
But interfering with Earth's natives was strictly against regilations, and the authorities occasionally didcheck into these matters. However, by the time Invesigator Kelexel arrived on the sene, the trouble had been going on for a long, long time - and things were getting worse!