The council is in a closed door meeting.
That in itself is not unusual.
There are vanguard guards outside the doors.
Also, not that unusual.
That the clerks are not in there recording the minutes? That it's a seemingly confidential meeting of the powerbrokers? And that the occasional raised voice comes out? but not enough to make out what is said - just the tone...
Yes - that is unusual.
Of course, there is a betting pool as to what is being discussed.