"Relict (n) Widow; geological or other object which has survived in a primitive form; animal or plant known to have existed in the same form in previous geological ages." Which definition fits the woman who calls herself Madame Carnacki? Perhaps they all do.
The third instalment of the Carnacki Continuum. The Jessop sisters seek monsters in an abandoned Tube station deep under the ancient heart of London - and find more, much more, than they bargained for.