Fumifugium

The Fumifugium were a species that lived and thrived in smoke. They worsened the Great Smog of London but were defeated by the Tenth Doctor, Donna Noble, Ivy Clark, Terry Hopkins and Richard Cooper. (AUDIO: The Creeping Death)

Zara once read a book entitled Fumifugium, published in London 1661, which analysed the effect of air pollution and smog on civilisation, while solving the mystery of the Fog that surrounded Compton in 1912. (AUDIO: The Fog)

Behind the scenes

• The book entitled Fumifugium, or The inconveniencie of the aer and smoak of London dissipated together with some remedies humbly proposed by J.E. esq. to His Sacred Majestie, and to the Parliament now assembled, is a real book published by John Evelyn in London 1661.