[s4e4] Gone Gone -

The episode opens with the disorienting revelation that Mary (Katy Wix) has moved on to the afterlife—a process the other ghosts call being .

For more behind-the-scenes details, you can listen to the official BBC podcast for this specific episode. [S4E4] Gone Gone

Katy Wix's departure was her own choice, driven by a desire to focus on other projects and a busy schedule. The episode opens with the disorienting revelation that

The ghosts, who have spent centuries together, are completely unprepared for the loss. Their reactions vary from Pat's attempt to offer misplaced comfort to Kitty's deep distress as she realizes she has lost her "best friend". The Real-Life Reason who have spent centuries together