“I had heard, variously, that it was a stage set, a sculpture, a Stonehenge-type monument to the Grateful Dead - but the first time I had looked out my window, dazed with Fiorinal, and seen the upright support posts rising stark from the lawn, I was flooded with black, irrational terror: gibbets, I thought, they're putting up gibbets, they're having a hanging on Commons lawn . . . The hallucination was over in a moment, but in a strange way it had persisted, manifesting itself in different lights like one of those pictures on the cover of horror paperbacks in the supermarket: turned one way, a smiling blond-haired child; turned the other, a skull in flames. Sometimes the structure was mundane, silly, perfectly harmless; though early in the morning, say, or around twilight, the world would drop away and there loomed a gallows, medieval and black, birds wheeling low in the sky overhead. At night, it cast its long shadow over what fitful sleep I was able to get.”