No other intercourse with the blacks was obtainable, at least none that produced any good results. One old man simply howled piteously all the time they were in his company, and another one, who had two children with him, said most emphatically that he had never heard of any horses having been killed, but that the natives had just killed and eaten his brother.
After vainly searching the district for many days, Forrest determined to utilise the remainder of the time at his disposal by examining the country as far to the eastward as his resources would permit.
It was evident that the story of the white men's remains had originated from the bones of the horses that died during Austin's trip; and, as no matter how circumstantial might be the narrations of the blacks, they invariably contradicted them the next time they were interrogated, it was evident it would serve little purpose being led by them on a foolish errand from place to place.
After pushing some distance east with very little encouragement in the shape of good country, Forrest, taking with him one black boy and a seven days' supply of rations, made a final excursion ahead, and managed to reach a point one hundred miles beyond the spot where he left his companions encamped. He found nothing to reward him. It was only by means of shallow and scanty pools of water that he managed to get so far, and the country where he turned back was certainly clearer than any he had crossed but it was only open sand plains, with spinifex and large white gums. He climbed a large gum tree to have a last look to the eastward, but it was a scene of desolation. Some rough sandstone cliffs were visible, distant about six miles N.E.; more to the north, a narrow line of samphire flats appeared, with cypress and stunted gums on its edges everywhere there was spinifex, and no prospect of water. Forrest turned back, and retraced his steps to where he had left his companions.
On his homeward way he managed to cross the dry bed of Lake Barlee, which had so nearly engulfed his horses, and examined the northern side of it.
On their return track Forrest kept a more northerly and westerly course, but saw nothing to alter the unfavourable report of the country made by the former explorers. He returned to Perth on the 6th August.
Forrest was not more successful than those preceding him in finding good available country to the eastward, but he at any rate obtained a correct and reliable survey of a good deal of country hitherto unknown.
On his return to Perth, Baron Von Mueller, whose ardour in the cause was rather increased by the disappointment experienced in finding that the accounts of the natives were quite unreliable, recommended a journey from the head waters of the Murchison in the direction of the Gulf of Carpentaria. Forrest was quite willing to undertake the trip, but want of funds stood in the way just then, and the matter was not enthusiastically supported by others.
It was then proposed to make a journey to Adelaide. by way of the Great Bight, which had not been traversed since Eyre's celebrated march round it, and the leadership was offered to Forrest and accepted by him.
The party, beside the leader, consisted of his brother Alexander, two white men and two natives, one of the last having been on the former trip. A coasting schooner, the ADUR, of thirty tons, was to accompany them round the coast, calling at Esperance Bay, Israelite Bay, and Eucla, there to supply the party with fresh stores. On the 30th March, they left Perth.