Board Thread:The Panopticon/@comment-121.45.54.78-20130925110520/@comment-5918438-20191119054835

Almost the opposite case is Missy's vortex manipulator in Planet of Dust. It is heard near the end, and identified in the following story — but Helen (might have been Liv) only hears it, and does not see Missy or the object.

If this were a TV story, there would be no argument, I think: the vortex manipulator does not appear. But in the case of full-cast audio stories, is it more important that we hear the person/object represented in audio (where listeners experience the thing first-hand), or that characters within the story see it (where we can be fairly certain the thing would more traditionally appear in another medium, such as TV or prose)?