The Northern Branch of the SA Archaeological Society will present a talk by Stefan Grab on Lightning and other geomorphic processes shaping the high Drakensberg at the Auditorium at Roedean School on Thursday 21 July at 8.00 pm. (Driving through Parktown along St Andrews Road you come to the traffic light at Princess of Wales Terrace. Turn left at the light; the entrance to Roedean is the first entrance on the right. The auditorium is the first building on the right, about 80 metres further. Parking available in the driveway near the auditorium, or in the parking garage underneath the auditorium).