His only clues point to a conspiracy that reaches far beyond his own murder, and survival lies in discovering other fugitives who know the truth about the ultimate weapon of chaos and salvation. Reprint.

    The title is a play on words, one meaning "the force which pulls" & the other being "extremely serious or important". It was serialized in Astounding Science Fiction, 4–7/53. Its 1st cloth publication was in '54. It was 1st published in paper in '58. Along with the novel itself, many editions (& most recent editions) of the book also include Whirligig World, an essay on creating the planet Mesklin that was published in the 6/53 Astounding. He published two sequels, a '70 novel called Star Light & a '73 short story called Lecture Demonstration. Mission of Gravity was nominated for a Retro Hugo Award for '54.For a profit & adventure Barlennan would sail thousands of miles across uncharted waters, into regions where gravity played strange tricks. He'd dare the perils of strange tribes & stranger creatures--even dicker with those aliens from beyond the skies, though the concept of another world was unknown to the inhabitants of the planet of Mesklin. But in spite of the incredible technology of the strangers & without regard for their enormous size, Barlennan had the notion of turning the deal to an unsuspected advantage for himself--a considerable enterprise for a being very much resembling a 15" caterpillar!

    Tracks the progress of a giant black cloud that comes towards Earth and sits in front of the sun, causing widespread panic and death. A select group of scientists and astronomers - including the dignified Astronomer Royal, the pipe smoking Dr Marlowe and the maverick, eccentric Professor Kingsly - engage in a mad race to understand and communicate with the cloud, battling against trigger happy politicians.

    Guns to Guatemala. For the men and women of Shorn Associates, opportunity is calling. In the superheated global village of the near future, big money is made by finding the right little war and supporting one side against the other–in exchange for a share of the spoils. To succeed, Shorn uses a new kind of corporate gladiator: sharp-suited, hard-driving gunslingers who operate armored vehicles and follow a Samurai code. And Chris Faulkner is just the man for the job.He fought his way out of London’s zone of destitution. And his kills are making him famous. But unlike his best friend and competitor at Shorn, Faulkner has a side that outsiders cannot see: the side his wife is trying to salvage, that another woman–a porn star turned TV news reporter–is trying to exploit. Steeped in blood, eyed by common criminals looking for a shot at fame, Faulkner is living on borrowed time. Until he’s given one last shot at getting out alive. . . .