The first two books were Turlough and the Earthlink Dilemma by Tony Attwood, published in July 1986 based upon the character played by Mark Strickson in the early 1980s, and Harry Sullivan's War, written by Ian Marter, who had actually played Harry Sullivan on the series a decade earlier, published in October 1986.
Mark Twain | Mark | Mark Wahlberg | Mark Knopfler | Mark Zuckerberg | Mark Rothko | Mark Antony | Mark the Evangelist | Gospel of Mark | Mark Ronson | Mark Spitz | Mark Foley | Mark Murphy (singer) | Mark Murphy | Mark McGwire | Mark Hamill | Deutsche Mark | Mark Taper Forum | Mark Millar | Mark Lewisohn | Mark Kermode | Mark Lanegan | Mark Waugh | Mark Rydell | Mark Goodson | Mark Owen | Mark Mothersbaugh | Mark Medoff | Mark Heard | Mark Dayton |