Updated, 29 July.
Thank you for all your replies. It seems that the following plan is a winner. Here is the schedule:
We will divide our next four meetings according to the four parts of Mere Christianity:
September 18: "Right and Wrong as a Clue to the Meaning of the Universe",
October 23: "What Christians Believe",
November 20: "Christian Behaviour",
December 18: "Beyond Personality: or First Steps in the Doctrine of the Trinity".
All meetings will be at 7:00 p.m., at Rock Point Books, 4th and Broad Street in downtown Chattanooga.
Look forward to seeing you there.