I called it Petermann's Creek.

We were now sixty-five miles from our depot, and had been most successful in our efforts to find a route to allow of the departure of Robinson, as it appeared that this creek would surely reach the Finke, though we afterwards found it did not.

I intended upon returning here to endeavour to discover a line of country round the south-eastern extremity of Lake Amadeus, so as to reach Mount Olga at last.

We now turned our horses' heads again for our home camp, and continued travelling until we reached Stokes's Creek, where we encamped after a good long day's march.
This morning, as we were approaching Penny's Creek, we saw two natives looking most intently at our outgoing horse tracks, along which they were slowly walking, with their backs towards us.

They neither saw nor heard us until we were close upon their heels.