“Right you are!” I cried. “We must believe the other until we prove it false. We can’t afford to give up heart now, when we need heart most. The branch was carried down by a river, and we are going to find that river.” I smote my open palm with a clenched fist, to emphasize a determination unsupported by hope. “There!” I cried suddenly. “See that, Bradley?” And I pointed at a spot closer to shore. “See that, man!” Some flowers and grasses and another leafy branch floated toward us. We both scanned the water and the coastline. Bradley evidently discovered something, or at least thought that he had. He called down for a bucket and a rope, and when they were passed up to him, he lowered the former into the sea and drew it in filled with water. Of this he took a taste, and straightening up, looked into my eyes with an expression of elation—as much as to say “I told you so!” “This water is warm,” he announced, “and fresh!” I grabbed the bucket and tasted its contents. The water was very warm, and it was fresh, but there was a most unpleasant taste to it. “Did you ever taste water from a stagnant pool full of tadpoles?” Bradley asked. “That’s it,” I exclaimed, “—that’s just the taste exactly, though I haven’t experienced it since boyhood; but how can water from a flowing stream, taste thus, and what the dickens makes it so warm? It must be at least 70 or 80 Fahrenheit, possibly higher.” “Yes,” agreed Bradley, “I should say higher; but where does it come from?” “That is easily discovered now that we have found it,” I answered. “It can’t come from the ocean; so it must come from the land. All that we have to do is follow it, and sooner or later we shall come upon its source.”