[Dear patients of St. Edelweiss, you may notice that there is something strange going on with the intercoms tonight. Static, crackling noises, dull light and faint short-lived apparitions, complete silence: these are some of the things you're being treated to.
In other words, A is testing the range of his abilities. If you enter his cell, he's sitting with both hands on the intercom, clearly concentrating on something.]
((edit: placing this before
this thread))