The Faceless Ones — Terrance Dicks

Summer, 1966: thousands of young people take their holidays with Chameleon Tours -- and not one of them comes back. When the TARDIS lands at Gatwick Airport the Doctor is drawn into a web of intrigue and deception. Who is behind these abductions, and for what sinister purpose? Soon the Doctor and Jamie must face a desperate group of faceless aliens -- the deadly Chameleons. An exciting novelization of a classic 1966 TV adventure.