The power finally returned after 2p.m. I then had to wait a while because my usual table next to the power socket was occupied. In fact there were 3 tables in use, which is very unusual.
Then the Egyptian students arrived. 10 coaches full of them all to visit Medinet Habu at the same time. Why, oh why, don't they stagger their itineraries? They stayed for about 40 minutes and moved on, probably all to visit the Colossi of Memnon at the same time!