This book was republished by BBC Books in 2015 as part of the History Collection.
Plot
Summer, 1930. London is in a heatwave. The Doctor, Romana and K-9 come to holiday but uncover time pollution locally.
What connects the isolated Sussex resort of Nutchurch with a secret society? What is the involvement of millionaire Hepworth Stackhouse? And what is the deadly green vapour?
Audio adaptation
Big Finish Productions, an audio production company based in the United Kingdom, announced they were doing an audio adaptation of this story starring Tom Baker and Lalla Ward, respectively. It was released in January 2015.