Mediums in local media

OK so not really legal history, but …

I was looking through the ‘What’s On’ section of the local free newspaper, and found this intriguing opportunity:

Feels as if they forgot to keep communicating to us mere mortals at the end. Possibly the more advanced medium would be able to work out how to join the meeting other than by turning up (Zoom? Astral Plane?). Or could the mysterious ending conceal an invitation to those on THE OTHER SIDE????