In the year 2100, mankind on Earth, settlers in a lunar colony and aliens from the para-universe, a strange universe parallel in time to our own, are faced with a race against time to prevent total destruction of the Earth. The invention of the Inter-Universe Electron Pump has threatened the rate of hydrogen fusion in the sun, leading, inevitably, to the possibilty of a vast explosion -- and the vapourisation of the Earth exactly eight minutes later ...
- ISBN10 0345318315
- ISBN13 9780345318312
- Publish Date 12 October 1984 (first published 10 August 1972)
- Publish Status Active
- Imprint Del Rey Books
- Format Paperback (US Mass Market)
- Language English