filming, and that the story was "gritty" and "provocative" with "fine character actors". He praised the design and the voice-acting of the Silurians but felt their rubber costume on-screen made them come across as "silly". Braxton was also disappointed with other production "shortcomings", such as the "cheap-looking" cave set, the dinosaur, and "Carey Blyton's electro-bagpiped Silurian theme". The A.V. Club reviewer Christopher Bahn wrote that it "keeps a snappy pace throughout thanks to Malcolm Hulke's well-plotted script". He noted that both the monsters and the humans were more complex than previously seen on Doctor Who. Like Braxton, he also felt the serial was "badly served by the Silurian costumes, which are terrible even by the standards of low-budget, 1970s TV". DVD Talk's John Sinnott noted that some parts were "a bit slow" due to the length, but it was a "mature" story where Pertwee defined his Doctor. However, Sinnott felt that John was still trying to find her character's place, and did not have much chemistry with Pertwee. Den of Geek gave a positive review of the serial, writing that "the production is only marred by its excessive number of episodes compared to the story it had to tell ... and an often-appalling 'medieval' score by experimentalist Carey Blyton". In 2010, Charlie Jane Anders of io9 listed Episode Six's cliffhanger as one of the best in all of Doctor Who. Anders listed the serial as a good example of the early Pertwee years, calling it "pretty fantastic" with enemies who "aren't just one-dimensional baddies" and the length "somewhat justified by a harrowing subplot where a plague starts killing people all across London". Commercial releases In print A novelisation of this serial, written by Malcolm Hulke, was published by Target Books in January 1974 under the title Doctor Who and the Cave Monsters. In this adaptation, the Silurians were given names like Morka, Okdel and K'to. The novelisation gives extensive background to the reptile culture, including a prologue featuring their hibernation beginning. Large parts of the novelisation are told from the reptiles' point of view and there is an extensive back-story given to several characters including Quinn and Major Baker (called Barker in the novelisation). The novelisation avoids referring to the reptiles as Silurians (the word turns up as a UNIT password) but identifies the dinosaur in the caves as a tyrannosaurus rex. The novelisation was also translated into Dutch, Finnish,