Between 1973 and 1991, Target Books published almost every "Doctor Who" television story that was originally broadcast from 1963 to 1989 as a novelisation, starting with new editions of the Frederick Muller books. When Target was closed down by Virgin Books in 1991, three further novelisations—two based on the 1960s Dalek serials "The Power of the Daleks" and "The Evil of the Daleks", and one based on the 1993 radio serial "The Paradise of Death"—were added to the range. Reprints under the Target imprint continued through 1994.