twelve o'clock
Not a sleeper stirred while he did so , and he crept quietly out , with the first part of his task accomplished . Gathering the things together , the boys made all speed back to a clump of trees half a mile in the rear of the camp . Here Ned put on one of the uniforms and the cloak , and they then started back again for the camp . The sentries upon the prisoners ' tent were changed at twelve o'clock , and a few minutes later the sentry at the rear of the tent saw one of his comrades come out of one of the large tents close to the end of his beat . He was wrapped in his blanket , and his face was tied up with a cloth . Coughing violently , he squatted himself in front of his tent , and rocked himself to and fro , with his hands to his face , uttering occasional groans . This was all so natural -- for the natives of India suffer much from neuralgia in the cold weather -- that the sentry thought nothing of the matter .