Slaves of the Mother (2014)

From publisher blurb:

The long-awaited conclusion of the Cthulhu Apocalypse campaign.

Three years ago, the world died.

Horrors now stalk the empty and overgrown streets of the civilisation that once existed here. The passage of three long, strange years has transformed the world into an unrecognisable landscape of horrors. There are a few survivors, living in the ruins of the past, but under the unfathomable pressure of the Mythos, their humanity is slipping away, cracking and moulting in the process of becoming something new.

Will the Investigators survive to the end – or will they even want to?

Slaves of the Mother contains the final three scenarios for Graham Walmsley’s Cthulhu Apocalypse.