# The Martian Sphinx

Canonical: https://www.bookquiver.com/john-brunner/the-martian-sphinx

![The Martian Sphinx](https://quivercdn.com/covers/gateway/john-brunner/the-martian-sphinx_978-05-7510-135-7.jpg?v=2026-05-20%2009%3A02%3A09)

- Authors: [John Brunner](https://www.bookquiver.com/john-brunner)
- Language: en_GB
- Published: 2011-09-29

## Description

By the twenty-first century the world was drowning in its own population. A solution had to be found quickly - and it was, in 'gravi-power'. Wonderful, unending source of power - only the scientists knew that its use was reducing the Earth's distance from the sun at a dangerous rate. But if another planet's gravi-power could harnessed . . . An expedition was launched to Mars, known to be uninhabited - except that a woman was wandering around its surface who claimed she had come from another galaxy to warn Earth of a terrible menace, and there was a huge poly-hedron of metal emanting a force very much like that of gravipower. Someone else had discovered it! A thousand years ago, or now? Friend, or enemy? (First published 1965)

## Editions

### The Martian Sphinx

- Publisher: gateway
- Medium: ebook
- ISBN: 978-05-7510-135-7
- Published: 2011-09-29
- Language: en_GB