We now determined to carry with us enough tea, sugar, and flour to last for a week, and to work up towards the unknown country at the head of the Mackay, leaving the boat in its present position, under the charge of two men. We intended to push towards the range whence both the Macalister and the Mackay rivers drew their supply; and as the former stream in its windings over the open plain approached within a mile of its large neighbour, we resolved to move the boat a little further up before starting on our new expedition. By occasionally lightening her, and dragging her over the shallows, this was accomplished in a couple of hours, and we finally halted at a bend in the river where the bank was high enough to shield the boat from all observation, whilst the scrub bordering the Mackay, standing at less than a quarter of a mile distant, the men left behind could easily see if any considerable body of blacks moved between the two streams, and could take the bearings of all smoke arising from fires in the direction of the coast, so that we might visit them hereafter, if deemed necessary. The fact of two rivers, each containing a constant supply of water, being found in such close proximity to each other, caused much remark, for none of us had ever observed a similar instance in Australia, which is as a rule very deficient in permanent rivers. We now turned our attention to getting sufficient provisions cooked to last the exploring party for three days, as we were determined to employ the utmost vigilance, and show as little smoke as possible, for nothing creates such suspicion amongst the aboriginals as seeing fresh fires constantly lighted, unless accompanied by the smoke signals, which I have described in a former chapter. As we were utterly ignorant of the code they employed, we resolved only to light our fires at night, and not even then unless we found some sequestered spot where the flame would be unseen. Some of us at once started for a large lagoon that we had passed in the morning, and creeping up through the long grass, found its surface quite covered with water-fowl of every description, from the black swan to the beautiful pigmy goose. A volley, fired at a concerted signal, strewed the surface of the lake with the dead and wounded, and we were compelled to stand idly on the bank until the wind wafted the game ashore, for at the report of the guns two or three heavy splashes and as many dusky forms gliding into the water betokened that we had disturbed alligators, either having a nap, or lying in wait for kangaroos and wallaby coming down to drink. More than one house now stands on the margin of this lagoon, but their inhabitants are still afraid to bathe in the broad sheet of water spread so invitingly before them.