In David A. McIntee's Past Doctor Adventure "The Face of the Enemy" (1998) Harry is seen still working for the Royal Navy before his secondment to UNIT, which he first encounters in the novel. He also appears in the novel "Wolfsbane" by Jacqueline Rayner, where he briefly aids the currently-amnesic Eighth Doctor in dealing with a plot involving a woman who believes herself to be the reincarnation of Morgan Le Fay in 1936 when the Fourth Doctor's TARDIS accidentally materialises there long enough for Harry to leave, having apparently been drawn off course by its damaged future self. Although the Eighth Doctor's amnesia and subsequent regenerations prevent either the Doctor or Harry from recognizing each other, Harry notes that the Doctor has a certain 'Doctorishness' about him.