Hindenburg did so, Emma Dean giving close attention. "What is the big idea?" demanded Lieutenant Wingate. "I wished to listen to this voice from the canine world because it carries a message to us," answered Miss Dean gravely. Hippy gave her a quick keen glance, but Ginger, taking sudden umbrage at a dog barking at his side, demanded his rider's exclusive attention. By the time Hippy had subdued the bronco, Emma's peculiar remark had passed out of mind. Soon after that, with packs neatly lashed, each rider in the saddle, the Overland Riders wheeled their ponies and jogged along the village street on their way to the Great North Woods where Tom Gray, as an expert forester, was to "cruise" or estimate the amount of timber standing on the thousands of acres in the huge timber tract, the largest tract of virgin timber east of the Rocky Mountains. The Overland Riders, who, for the previous three summers, following their return from France where they had served in various capacities during the war, in the Overton College Unit, had decided to accompany Tom to the Big Woods, seeking such adventure as the northland might afford. As they started away on the first leg of their journey, none was more joyous than the bull pup, who barked at the villagers, barked at every dog and cat within sight, and, after the village had been left behind, entertained himself by barking at imaginary cats and dogs, Emma Dean being his most interested listener. Emma's quietness attracted the attention of her companions, and they wondered at the change in her, for, on previous journeys, there was seldom a time when Emma did not have a great deal to say. Not until after five o'clock that afternoon did the party halt to rest the ponies and have luncheon, the latter consisting of hot tea and biscuit, the Riders having planned to eat their supper at Bisbee's Corners. Most of the girls were quite ready for a rest, but, this being their first long ride of the season, they found, upon dismounting, that they could hardly walk. Grace, being the least disturbed of the party, volunteered to get the fire started and brew the tea, while Lieutenant Wingate and Tom Gray watered the horses and staked them at the side of the road for a nibble at the grass that grew there. Then all hands sat down with their feet curled under them and held out their tin cups for a drink of hot tea. Emma Dean poised her cup in the air, and, with a far-away look in her eyes, listened intently to the solemn bell note of a hermit thrush. "What _is_ on your mind to-day, Emma Dean?" laughed Anne Nesbit. "Is it possible that you are in love or something?" "I am listening to the voices of nature," replied Emma solemnly, shaking her head slowly and taking a sip of tea. "This is something new, isn't it?" twinkled Grace Harlowe.