Continuation novel

Examples of official continuations include Porto Bello Gold by Arthur D. Howden Smith, the multiple authors that have continued Ian Fleming's James Bond series, including John Gardner, Raymond Benson, Anthony Horowitz and others; Young Sherlock Holmes by Andy Lane, The House of Silk by Anthony Horowitz and the 2014 Hercule Poirot continuation novel The Monogram Murders by Sophie Hannah, produced with the permission of the Agatha Christie estate.

[3] In 1998, Jill Paton Walsh completed the 1936 work Thrones, Dominations authorised by the estate of Dorothy L. Sayers to continue the Lord Peter Wimsey series.

[7] Several authors have published continuation novels of August Derleth's character Solar Pons.

For this reason publishers will sometimes commission a continuation novel if they feel that interest in the original author is beginning to wane.

There are a large number of Sherlock Holmes continuations for instance which vary in quality and authenticity.