
Part of Series
With the TARDIS working perfectly, the Doctor and Peri decide to take a holiday. But where? A long-forgotten piece of equipment in the TARDIS storage locker sends them to the peaceful and idyllic continent of Tranquela - home of the Doctor’s old friend Ravlos. But the land where they emerge is far from peaceful. A hate ray is regularly sweeping Tranquela, turning its inhabitants into savage beasts, and there is only one place it can originate - the planet’s other continent, home of Tranquela’s old enemies, the Amelierans. Or is that the only place? Because somewhere far above the planet events are watched by the slimy super-salesman, Mordant, who has his own unscrupulous plans.
Author

Wally K. Daly is an English writer for television and radio and one time chairman of the Writers' Guild of Great Britain As well as some minor acting roles including Z-Cars, his writing credits include Juliet Bravo, Casualty and Byker Grove. He also wrote the 1984 radio series Anything Legal featuring Donald Hewlett and Michael Knowles. Daly also wrote a story for Doctor Who called The Ultimate Evil but due to its hiatus the story was cancelled but was published in the popular range of Who books. In the early 1980s, three of his stage plays were performed at the Queen's Theatre, Hornchurch - The Miracle Shirker, Vaughan Street (both 1980) and a stage adaptation of his radio and television play Butterflies Don't Count (1982)