It was scarcely needed. During the last quarter-hour the layer of cloud had grown steadily thinner, and now the sun broke through in summerlike warmth, so dazzlingly that Joachim protected his head with a white linen shade which was fastened to the arm of his chair, and furnished with a device by means of which it could be adjusted to the position of the sun. Hans Castorp praised this contrivance. He wished to await the result of Joachim’s measurement, and meanwhile looked about to see how everything was done: observed the fur-lined sleeping-sack that stood against the wall in a corner of the loggia, for Joachim to use on cold days; and gazed down into the garden, with his elbows on the balustrade. The general rest-hall was populated by reclining patients, reading, writing, or conversing. He could see only a part of the interior, some four or five chairs.

“How long does that go on?” he asked, turning round.

Joachim raised seven fingers.

“Seven minutes! But they must be up!”