When Tony, Morrey and Serge were summoned by Sir Billy Gillanders to the U.N.E.X.A. headquarters they hoped they were to be sent on yet another mission to some distant planet. Instead they learned that they were to go to the moon, not as astronauts, but as detectives. Sir Billy wanted them to investigate a series of mysterious disappearances fro, Lunar City...

Science Fiction and Fantasy Literature, A Checklist, 1700-1974, Volume one of Two, contains an Author Index, Title Index, Series Index, Awards Index, and the Ace and Belmont Doubles Index.

Presents articles on the science fiction genre of literature, including authors, themes, significant works, and awards.

If the ladder hadn't slipped when Chris Godfrey was chalking up the sports results - and if Sir George Benson hadn't been passing at that very moment - it might never have happened. It had become imperative to fire a conscious human being into space and Sir George, who was Director of Research at Woomera, couldn't see how it was to be done until he met Chris. Once Chris agreed, things moved fast. Whisked to London by the R.A.F., he started his training, was fitted for a G-suit, got to know the landscape of the Moon as well as he knew the school sports ground. Then on to Woomera; and, at last, into space...

When the famous astronauts Chris Godfrey and his team are scheduled for a trip to Saturn, they are at first shocked to learn that they will be put into "deep freeze", a process called hypothermia, in order to make the long voyage possible. As on another voyage, the telepathic twins are enlisted for the project. Also frozen, they manage to avert disaster by sending warning signals even during their deep sleep. Extreme danger develops when Saturn's rings exert more gravitation than anticipated - pulling the spaceship into what seems certain destruction...

After the radiation bombardment from those mysterious structures on the Moon - chronicled in The Domes of Pico - it was inevitable, of course, that a lunar landing would have to be made; and Chris thought, too, that it was inevitable that he should be chosen for the job. But things didn't work out quite as planned. There was an American candidate for the honour of piloting the first Western rocket to the Moon; and the Russians had their own schemes for turning it into a Soviet satellite...

The four intrepid astronauts, headed by Chris Godfrey, look forward with enthusiasm to their trip to Mercury until the new crew member turns out to be a girl! Gail Patrick is being sent along to test mental telepathy as a means of communication. Her twin sister, Gill, will remain in the control room on earth to receive and send messages into space.