Spitalfields Rookery

From publisher blurb:

In this, the fourth instalment of the Gasmask Gazetteer, we uncover a house of horrors in the most unfortunate area of London. This lodging house teems with lost souls and false hopes. It is the type of place one intends to never enter, but where sometimes the only source of information (or suitable, anonymous fresh meat) can be found. Yet, two Undertakers can be found nearby with an unfamiliar beast said to aid them in their hunting of the living dead. This creature is described below, as are new Monster Hunter Stunts for Undertakers, as well as additional equipment and other content suitable for characters of any Calling.