He however discovered and named the Boyne River.
It being considered too late in the season to proceed and examine Port Bowen, the Mermaid went south again, and entering Moreton Bay, anchored off the river that appeared to Flinders to take its source in the Glass House Peaks, and which he had called the Pumice Stone River.
They had scarcely anchored when several natives were seen at a distance, evidently attracted by their arrival, and on examining them with the telescope, Uniacke was struck with the appearance of one of a much lighter colour than that of his companions.

The next day Oxley landed and discovered that the man they had noticed was in reality a castaway white man of the name of Pamphlet.

He told a singular tale.
He had left Sydney in an open boat with three others, intending to go to the Five Islands and bring back cedar.

A terrible gale arose, and they were blown out to sea and quite out of their reckoning, Pamphlet being under the impression that they had come ashore south of Port Jackson.
They had suffered fearful hardships in the open boat, being at one time, he averred, twenty-one days without water, during which time one man died of thirst.

The boat was at last cast up on an island in the bay (Moreton Island) where they had joined the blacks, and lived amongst them ever since, a matter of seven months.