| Relative Dementias | |
| Author: | Mark Michalowski |
| Series: | Doctor Who book: Past Doctor Adventures |
| Release Number: | 49 |
| Subject: | Featuring: Seventh Doctor Ace |
| Set In: | Period between Battlefield and Ghost Light |
| Release Date: | January 2002 |
| Publisher: | BBC Books |
| Pages: | 277 |
| Isbn: | 0-563-53844-9 |
| Preceded By: | Instruments of Darkness |
| Followed By: | Drift |
Relative Dementias is a BBC Books original novel written by Mark Michalowski and based on the long-running British science fiction television series Doctor Who. It features the Seventh Doctor and Ace.[1]
Ace's full name is given as Dorothy Gale McShane. This resolves a naming anomaly created during sequence of BBC Books' Past Doctor Adventures set after Survival and written by Mike Tucker and Robert Perry. They had used the name 'Dorothy Gale', as the authors were unaware that the name 'McShane' had been used in the New Adventures novels.