On the way to the Murchison, they had induced an old native to come with them to point out the watering-places of the blacks.

At first he was able to show them one or two that in all probability they would have missed, but after they had crossed the Murchison and proceeded some distance to the westward, the water the native had relied on was found to have disappeared, and it was only after the most acute sufferings from thirst and the loss of some more horses, that they managed to struggle back to Mount Welcome.
Austin's conduct during these terrible marches seems to have bordered on the heroic.

Whilst his companions fell away one by one and lay down to die, and the one native of the wilds was cowering weeping under a bush, he toiled on and managed to reach a little well which the blackfellow had formerly shown him.

Without resting, he tramped back with water to revive his exhausted companions.
At Mount Welcome they found the water on the point of giving out, and weak and exhausted though they were, an immediate start had to be made to the Geraldine mine, a small settlement having been formed there to work the galena lode discovered by Gregory.

That they would ever reach the mine the explorers could not hope; they and their horses were in a state of extreme weakness, the distance to the mine was one hundred and sixty miles, and to the highest point on the Murchison, where Gregory had found water, their first stage was ninety miles.