At first she could not see even the ruff of white that made the collar around his tawny throat, for the moon had slipped behind a cloud, but as she raised herself on her elbow, and peered intently through the darkness, the faint misty light shone out again, and she saw Hero plainly, the Little Colonel's outstretched hand resting on his broad back.

Then she lay down again, this time to sleep, and soon all the little camp was wrapped in the peace and rest of perfect silence.
Half an hour later Hero lifted his head from between his paws and listened.

Something seemed calling him.

He did not know what.

Being only a dog, he could not analyse the thoughts passing through his brain.