| 100% | THIRD | 5 | & 11D The —, Flann O'Brien novel published posthumously in 1967 |
| 46% | MAGICOFOZ | 9 | The —, L Frank Baum novel published posthumously in 1919 |
| 46% | NEON | 4 | The —, John Kennedy Toole novel published posthumously in 1989 |
| 46% | CASTLE | 6 | The —, Franz Kafka novel published posthumously in 1926 |
| 46% | TRIAL | 5 | The —, Franz Kafka novel published posthumously in 1925 |
| 44% | LOLITA | 6 | Noted novel in the guise of a posthumously published memoir |
| 43% | WEB | 3 | John Wyndham novel published posthumously in 1979 |
| 43% | THETRIAL | 8 | Franz Kafka novel published posthumously in 1925 |
| 43% | STEPHENHERO | 11 | James Joyce novel published posthumously in 1944 |
| 43% | ISLANDSINTHE | 12 | Ernest Hemingway novel published posthumously in 1970 |
| 43% | THECASTLE | 9 | Franz Kafka novel published posthumously in 1926 |
| 43% | NEON | 4 | & 9A The —, John Kennedy Toole novel published posthumously in 1989 |
| 42% | LADYSUSAN | 9 | Epistolary Jane Austen novel published posthumously in 1871 |
| 42% | MAURICE | 7 | E M Forster novel published posthumously in 1971 |
| 42% | THEJANSON | 9 | & 2D Robert Ludlum novel published posthumously in 2002 |
| 42% | THEMAGICOFOZ | 12 | L Frank Baum novel published posthumously in 1919 |
| 42% | THEMAGIC | 8 | & 8A L Frank Baum novel published posthumously in 1919 |
| 40% | PERSUASION | 10 | Jane Austen novel published posthumously in 1817 whose protagonist is Anne Elliot |
| 39% | MARTIAN | 7 | The —, novel by George du Maurier published posthumously in 1897 |
| 36% | THECASTLE | 9 | The last Kafka novel, posthumously published |
| 36% | OMERTA | 6 | Novel by Mario Puzo published posthumously in 2000 |
| 36% | THEPROFESSOR | 12 | Novel by Charlotte Bronte published posthumously in 1857 |
| 35% | OMERTA | 6 | Mario Puzo novel that was posthumously published in 2000 |
| 35% | LITTLEDORRIT | 12 | Charles Dickens novel published in book form in 1857 featuring the character Arthur Clennam |
| 34% | ROBERTNOONAN | 12 | Author of novel The Ragged-Trousered Philanthropists, published posthumously in 1914 under the name Robert Tressell |
| 34% | THEMARTIAN | 10 | Novel by George du Maurier published posthumously in 1897 |