... several tall buildings had risen from the ruins 

Early that evening Sophie\'s mother went to visit a friend. As soon as she was out of the house Sophie went down the garden to the den. There she found a thick package beside the big cookie tin. Sophie tore it open. It was a video cassette.

She ran back to the house. A video tape! How on earth did the philosopher know they had a VCR? And what was on the cassette?

Sophie put the cassette into the recorder. A sprawling city appeared on the TV screen. As the camera zoomed in on the Acropolis Sophie realized that the city must be Athens. She had often seen pictures of the ancient ruins there.

It was a live shot. Summer-clad tourists with cameras slung about them were swarming among the ruins. One of them looked as if he was carrying a notice board. There it was again. Didn\'t it say "Hilde"?

After a minute or two there was a close-up of a middle-aged man. He was rather short, with a black, well-trimmed beard, and he was wearing a blue beret. He looked into the camera and said: "Welcome to Athens, Sophie. As you have probably guessed, I am Alberto Knox. If not, I will just reiterate that the big rabbit is still being pulled from the top hat of the universe.

"We are standing at the Acropolis. The word means \'citadel\'--or more precisely, \'the city on the hill.\' People have lived up here since the Stone Age. The reason, naturally, was its unique location. The elevated plateau was easy to defend against marauders. From the Acrop-olis there was also an excellent view down to one of the best harbors in the Mediterranean. As the early Athens began to develop on the plain below the plateau, the Acropolis was used as a fortress and sacred shrine... During the first half of the fifth century B.C., a bitter war was waged against the Persians, and in 480 the Persian king Xerxes plundered Athens and burned all the old wooden buildings of the Acropolis. A year later the Persians were defeated, and that was the beginning of the Golden Age of Athens. The Acropolis was rebuilt-- prouder and more magnificent than ever--and now purely as a sacred shrine.

"This was the period when Socrates walked through the streets and squares talking with the Athenians. He could thus have witnessed the rebirth of the Acropolis and watched the construction of all the proud buildings we see around us. And what a building site it was! Behind me you can see the biggest temple, the Parthenon, which means \'the Virgin\'s Place.\' It was built in honor of Athene, the patron goddess of Athens. The huge marble structure does not have a single straight line; all four sides are slightly curved to make the building appear less heavy. In spite of its colossal dimensions, it gives the impression of lightness. In other words, it presents an optical illusion. The columns lean slightly inwards, and would form a pyramid 1,500 meters high if they were continued to a point above the temple. The temple contained nothing but a twelve-meter-high statue of Athene. The white marble, which in those days was painted in vivid colors, was transported here from a mountain sixteen kilometers away."

Sophie sat with her heart in her mouth. Was this really the philosopher talking to her? She had only seen his profile that one time in the darkness. Could he be the same man who was now standing at the Acropolis in Athens?

He began to walk along the length of the temple and the camera followed him. He walked right to the edge of the terrace and pointed out over the landscape. The camera focused on an old theater which lay just below the plateau of the Acropolis.

"There you can see the old Dionysos Theater," continued the man in the beret. "It is probably the very oldest theater in Europe. This is where the great tragedies of Aeschylus, Sophocles, and Euripides were performed during the time of Socrates. I referred earlier to the ill-fated King Oedipus. The tragedy about him, by Sophocles, was first performed here. But they also played comedies. The best known writer of comedies was Aristophanes, who also wrote a spiteful comedy about Socrates as the buffoon of Athens. Right at the back you can see the stone wall which the actors used as a backdrop. It was called skene, and is the origin of our word \'scene.\' Incidentally, the word \'theater\' comes from an old Greek word meaning \'to see.\' But we must get back to the philosophers, Sophie. We are going around the Parthenon and down through the gateway ..."

The little man walked around the huge temple and passed some smaller temples on his right. Then he began to walk down some steps between several tall columns. When he reached the foot of the Acropolis, he went up a small hill and pointed out toward Athens: "The hill we are standing on is called Areopagos. It was here that the Athenian high court of justice passed judgment in murder trials. Many hundreds of years later, St. Paul the Apostle stood here and preached about Jesus and Christianity to the Athenians. We shall return to what he said on a later occasion. Down to the left you can see the remains of the old city square in Athens, the agora. With the exception of the large temple to Hephaestos, the god of smiths and metalworkers, only some blocks of marble are preserved. Let us go down ..."

The next moment he appeared among the ancient ruins. High up beneath the sky--at the top of Sophie\'s screen--towered the monumental Athene temple on the Acropolis. Her philosophy teacher had seated himself on one of the blocks of marble. He looked into the camera and said: "We are sitting in the old agora in Athens. A sorry sight, don\'t you think? Today, I mean. But once it was surrounded by splendid temples, courts of justice and other public offices, shops, a concert hall, and even a large gymnastics building. All situated around the square, which was a large open space ..............