I HAVE NO memory of the Friday seminar meetings. Even when I recall the trial, I cannot remember what topics we selected for scholarly discussion. What did we talk about? What did we want to know? What did the professor teach us?

But I remember the Sundays. The days in court gave me a new hunger for the colors and smells of nature. On Fridays and Saturdays I managed to catch up on what I had missed of my studies during the other days of the week, so that I could complete my course assignments and pass the semester. On Sundays, I took off by myself.

Heiligenberg, St. Michael’s Basilica, the Bismarck Tower, the Philosophers’ Path, the banks of the river—I didn’t vary my route much from one Sunday to the next. I found there was enough variety in the greens that became richer and richer from week to week, and in the floodplain of the Rhine, that was sometimes in a heat haze, sometimes hidden behind curtains of rain and sometimes overhung by storm clouds, and in the smells of the berries and wildflowers in the woods when the sun blazed down on them, and of earth and last year’s rotting leaves when it rained. Anyway I don’t need or seek much variety. Each journey a little further than the last, the next vacation in the new place I discovered during my last vacation and liked . . . For a while I thought I should be more daring, and made myself go to Ceylon, Egypt, and Brazil, before I went back to making familiar regions more familiar. I see more in them.

I have rediscovered the place in the woods where Hanna’s secret became clear to me. There is nothing special about it now, nor was there anything special then, no strangely shaped tree or cliff, no unusual view of the city and the plain, nothing that would invite startling associations. In thinking about Hanna, going round and round in the same tracks week after week, one thought had split off, taken another direction, and finally produced its own conclusion. When it did so, it was done—it could have been anywhere, or at least anywhere the familiarity of the surroundings and the scenery allowed what was truly surprising, what didn’t come like a bolt from the blue, but had been growing inside myself, to be recognized and accepted. It happened on a path that climbed steeply up the mountain, crossed the road, passed a spring, and then wound under old, tall, dark trees and out into light underbrush.

Hanna could neither read nor write.

That was why she had had people read to her. That was why she had let me do all the writing and reading on our bicycle trip and why she had lost control that morning in the hotel when she found my note, realized I would assume she knew what it said, and was afraid she’d be exposed. That was why she had avoided being promoted by the streetcar company; as a conductor she could conceal her weakness, but it would have become obvious when she was being trained to become a driver. That was also why she had refused the promotion at Siemens and become a guard. That was why she had admitted to writing the report in order to escape a confrontation with an expert. Had she talked herself i............