Probes from an advanced alien civilisation are discovered amongst meteorites which have hit the coldest parts of the planet. Are they an attempt to communicate, or are they a prelude to something much more sinister, an alien invasion? Is the human race in danger of annihilation?  The events lead to much debate on earth. Scientists too are puzzled. Why have the aliens used probes? Why have the coldest, and least populated, parts of the planet been targeted?  All these questions are answered when a giant asteroid, a mini-world full of aliens, swings into orbit. The sun’s life-giving...