Gideon knew well enough that the 1300s, when the existing castle had been built, had been no less traumatic than the 1900s. But now, with the courtyard empty and the air, damp with river mist, on his face, Gideon found the scene wonderfully peaceful. His breath came more easily; his nerves almost perceptibly stopped jangling. He stood in the deserted courtyard, thinking of nothing, letting his mind resettle itself into its usual, placid mode.

Slowly, he walked down the curving road that descended to the Old Town, stopping now and then to look out over the rooftops and the glistening river, or to run his hand over the jumbled piles of smooth stone blocks that gleamed like pewter in the moonlight: all that remained of the once-formidable castle outposts. The jittery, near-paranoid state he had fallen into now seemed absurd and a little embarrassing; he had been unreasonably rude to people trying to be friendly.

When he had been offered the visiting fellowship six months before, he had jumped at the chance and had begun to talk about it as his Great Adventure. And then, at the first hint of danger-if you could call it that-he had developed the raving heebie-jeebies. It had to be the lack of sleep. And all that wine.

The job was perfect; his course material was stimulating, the places he was going were exciting-much more exciting than his original assignment-and his working hours were unbelievable. Each seminar would run for four evenings, Monday through Thursday, leaving the daytime hours free for exploring, and giving him four whole days to travel to the next location and see some more of Europe on the way.

At the bottom of the hill, along the quiet Zwingerstrasse, he looked with pleasure at the scattered buildings of grand old Heidelberg University. Some of the walls were spray-painted with political slogans, a sight that caused him mild pain. It was one thing to scrawl graffiti on the buildings of Northern Cal; but Heidelberg University…! It just didn’t seem right. A sign of the times, he thought to himself, then chuckled at the pun. He was more than a little tight, he realized.