| OUTOFTHE | & 22A 1938 C S Lewis novel; first part of the Space Trilogy (3,2,3,6,6) |
| LEWIS | C. S. -; novelist who wrote The Space Trilogy comprising Out of the Silent Planet, Perelandra and That Hideous Strength (5) |
| ELROY | Cartoon character who is a part of the Space Cub Troop |
| ORING | Faulty part of the space shuttle Challenger |
| ELMERGANTRY | Sinclair Lewis novel first published in 1927 (5,6) |
| CSLEWIS | He wrote The Space Trilogy (2,5) |
| WARDROBE | C.S. Lewis novel, The Lion, the Witch and the ... |
| HIRED | The ___, 1969 Melvyn Bragg novel; first part of The Cumbrian Trilogy (5,3) |
| MAN | The -, 1969 Melvyn Bragg novel; first part of The Cumbrian Trilogy (5,3) |
| NEPHEW | The Magician's - - -, C S Lewis novel (6) |
| HIS | C.S. Lewis novel "The Horse and ___ Boy" |
| SUNSETSONG | Lewis Grassic Gibbon novel, first part of ' A Scots Quair' trilogy (6,4) |
| CASPIAN | Prince ----, C. S. Lewis novel (7) |
| NARNIA | Locale of seven C. S. Lewis novels |
| ASLAN | Hero of Narnia in C. S. Lewis novels |
| ORBIT | The whole of the space-trip ___ or just a part (5) |
| COLUMBIA | NASA orbiter used for the first flight of the Space Shuttle program in 1981 (8) |
| AREA | The surface extent of the space alongside the basement (4) |
| GEMINI | Star sign that was also the name of one of the space programmes (6) |
| ALT | Modifier key, typically to the left of the space bar |