This is a list of unfinished novels completed by others.
| Title | Original author | Completing author(s) | Notes | |
|---|---|---|---|---|
| The Assassination Bureau, Ltd | Robert L. Fish[1] | London wrote 20,000 words, but could not come up with a logical ending. | ||
| L'Astrée | Balthazar Baro (4th part), Pierre Boitel, sieur de Gaubertin (5th and 6th parts) | D'Urfé completed three parts of this immense work (5399 pages). | ||
| Blind Love | Collins "left detailed plans for the last third of this novel".[2] | |||
| The Buccaneers | Marion Mainwaring[3] [4] | |||
| The Ghost-Seer | ||||
| Hornblower and the Crisis | Several | |||
| The Knight of Sainte-Hermine | Claude Schopp | The nearly complete lost novel was rediscovered in 1990 by Dumas expert Schopp, who wrote three more chapters.[5] | ||
| The Last Theorem | Suffering from ill health and writer's block, Clarke asked Pohl to finish the novel. Clarke reviewed and approved the final manuscript just days before he died, but the critics' opinions were mixed. | |||
| Micro | Richard Preston[6] | It was based on an untitled, unfinished manuscript found on his computer. | ||
| The Mystery of Edwin Drood | Numerous | Six of 12 planned instalments (23 chapters) were published. | ||
| Poodle Springs | Chandler wrote four chapters, consisting of 31 pages. Ed Victor, the agent for his estate, asked Parker to supply the rest.[7] | |||
| Sanditon | Numerous, including Anna Austen Lefroy, Austen's niece[8] | Austen finished 11 chapters. | ||
| St. Ives | Quiller-Couch wrote the final six chapters.[9] | |||
| Thrones, Dominations | Jill Paton Walsh[10] | |||
| Under the Hill | ||||
| The Watsons | Jane Austen |