The Case of the Masquerade Mob

Life has settled down for Connie and Katherine. Connie is enjoying life as a new mother, while Katherine is working solo for the Department. When they accept invitations to a charity masked ball, they anticipate nothing but a fun evening out.

The event changes everything, as Katherine is abruptly dismissed for attending and Connie is asked to investigate the sudden death of a friend who was involved in organising it. Caster and Fleet are back on the case.

However, things do not go smoothly. Another unexpected death occurs, and when the duo probe further they risk putting both themselves and their families in peril, as the case moves uncomfortably close to home...

How far must Katherine and Connie go to solve the case and clear their names?

The Case of the Masquerade Mob is the fourth book in the Caster & Fleet mystery series, set in 1890s London.