THE GREEN LIGHT
would not do. He must not think of the past—the awful past. He must not think of the future—of his schemes for escape. He must concentrate his thoughts on the present moment, until he could get to some place where he could be alone. Yes, Regent's Park would do well, and it was near. He brushed his hat with his coat-sleeve, put it on, and walked. He thought about the movement of his feet, and the best way to cross the road, and how to avoid running into people, and how to behave as other people in the street behaved. All the things that one generally does unconsciously and automatically required now for their conduct a distinct mental effort.
As he walked on, his mind seemed to clear a little. He reached a spot in Regent's Park where he could lie down in the grass with no one near him, out of sight. 'Now,' he said to himself, 'I need concentrate my thoughts no longer—I can let them
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