As we drew nearer his pace slackened. Then he stopped and pointed, and I saw a small circle of burnt grass upon the ground. The tussocks were blackened and smouldering, and from the centre rose this line of smoke, pale, blue, steady. Then I noticed a movement of the atmosphere beside us, as if the warm air were rising and the cooler air rushing in to take its place: a little centre of wind in the stillness. Overhead the boughs stirred and trembled where the smoke disappeared. Otherwise, not a tree sighed, not a sound made itself heard. The wood was still as a graveyard. A horrible idea came to me that the course of nature was about to change without warning, had changed a little already, that the sky would drop, or the surface of the earth crash inwards like a broken bubble. Something, certainly, reached up to the citadel of my reason, causing its throne to shake.