M'latter man tell Sam heap.
Sam take m'latter man way." By diligent questioning, Sam had made out that this man had knowledge of affairs in the British camp which he was willing to sell for some service that Sam could do him.
Sam was not sure of Thlucco.

His knowledge of the Indian character did not predispose him to trust Indian professions of friendship, and he strongly suspected treachery of some sort here.

He thought it possible that this was only a scheme to entrap his secret and himself, and he had gone to the conference determined to be on his guard, and in the event of trouble, to use the stout cudgel which he carried as vigorously as possible.
"If we are to talk," he said to the man, "you must come with me." The man hesitated, afraid, apparently, of treachery.
"I do not know you," he said, "and the Indian may have lied." "Listen to me," said Sam in reply, "I do not know you, and the Indian may have lied to me.

Yet I have trusted myself here in the dark.

You must trust something to me.