Burnes sanguinely believed that he had arrived at Cabul in the nick of time, for an envoy from the Shah of Persia was already at Candahar, bearing presents and assurances of support. The Dost made no concealment to Burnes of his approaches to Persia and Russia, in despair of British good offices, and being hungry for assistance from any source to meet the encroachments of the Sikhs, he professed himself ready to abandon his negotiations with the western powers if he were given reason to expect countenance and assistance at the hands of the Anglo-Indian Government. Burnes communicated to his Government those friendly proposals, supporting them by his own strong representations, and meanwhile, carried away by enthusiasm, he exceeded his powers by making efforts to dissuade the Candahar chiefs from the Persian alliance, and by offering to support them with money to enable them to make head against the offensive, by which Persia would probably seek to revenge the rejection of her overtures. For this unauthorised excess of zeal Burnes was severely reprimanded by his Government, and was directed to retract his offers to the Candahar chiefs. The situation of Burnes in relation to the Dost was presently complicated by the arrival at Cabul of a Russian officer claiming to be an envoy from the Czar, whose credentials, however, were regarded as dubious, and who, if that circumstance has the least weight, was on his return to Russia utterly repudiated by Count Nesselrode. The Dost took small account of this emissary, continuing to assure Burnes that he cared for no connection except with the English, and Burnes professed to his Government his fullest confidences in the sincerity of those declarations. But the tone of Lord Auckland's reply, addressed to the Dost, was so dictatorial and supercilious as to indicate the writer's intention that it should give offence. It had that effect, and Burnes' mission at once became hopeless. Yet, as a last resort, Dost Mahomed lowered his pride so far as to write to the Governor-General imploring him 'to remedy the grievances of the Afghans, and afford them some little encouragement and power.' The pathetic representation had no effect. The Russian envoy, who was profuse in his promises of everything which the Dost was most anxious to obtain, was received into favour and treated with distinction, and on his return journey he effected a treaty with the Candahar chiefs, which was presently ratified by the Russian minister at the Persian Court. Burnes, fallen into discredit at Cabul, quitted that place in August 1838. He had not been discreet, but it was not his indiscretion that brought about the failure of his mission. A nefarious transaction, which Kaye denounces with the passion of a just indignation, connects itself with Burnes' negotiations with the Dost; his official correspondence was unscrupulously mutilated and garbled in the published Blue Book with deliberate purpose to deceive the British public.