He was cold.

The blanket was drenched and the dew hung like a frost on bush and grass.
"It looks as if they had found out," he said.
"This is only the second night," said Jose Medina.
"It all means so much to me," replied Hillyard, shivering in the briskness of the morning.
"Courage, the little Marteen!" cried Jose Medina.

"After breakfast and a few hours' sleep, we shall take a rosier view." Hillyard, however, could not compose himself to those few hours.

The dread lest the Germans should have discovered the interception of their letters weighed too heavily upon him.

Even in the daylight he needs must look out over that placid sunlit sea and imagine here and there upon its surface the low tower and grey turtle-back of a submarine.
Success here might be so great a thing, so great a saving of lives, so dire a blow to the enemy.