All he did when the morning came was to send urgent messages to Sir Robert Sale, who was then on his way to Jelalabad, to proceed as rapidly as possible to Cabul. Sir Robert, however, thought it a matter of such paramount importance to keep open the communications with India, that he pursued his way to Jelalabad, and fortunately so, as was proved by after events. General Nott despatched three regiments to Candahar, in the hope of relieving the Cabul garrison; but the difficulties of the way and the severity of the weather were so great that they turned back, after accomplishing a portion of the distance. The cantonments at Cabul were now commanded by two guns, which the Afghans had planted on a neighbouring hill; and the British troops failed in an attempt to break out into the open country. The supplies of food ran short, and ultimately failed altogether; so that an agreement of some kind became an absolute necessity. The last act of Sir William Macnaghten was to open negotiations with the Afghan chiefs; but on the 23rd of December--a few days later--he was treacherously murdered by Akbar Khan, the eldest son of Dost Mahomed, who was now the leader of the insurrection. The two had entered into some rather obscure negotiations for making Akbar the Vizier and virtual master of Shah Soojah, and putting down the other chiefs. An interview was arranged for discussing this project; but a misunderstanding arose, and Macnaghten was shot by Akbar Khan, who afterwards, however, expressed great remorse for the deed. Shah Soojah appears to have acted with energy and good faith; but at the very commencement of the revolt his troops were overpowered by superior numbers, and he could now do nothing. The action of the malcontents was characterised by the utmost treachery. They had undertaken to furnish supplies, if the forts which guarded the cantonments were placed in their hands. The terms were accepted, but no food was forthcoming, while the possession of the forts by the enemy placed the cantonments wholly at his mercy. Matters therefore proceeded from bad to worse, and at length it was agreed that all the guns, excepting six, together with all the treasure, should be relinquished; that four officers should be put into the hands of the chiefs as hostages; and that 40,000 rupees, in bills drawn upon India, to be negotiated on the spot by some Hindoo bankers, should be paid to the Afghans. In exchange for these concessions, Akbar Khan promised to conduct the English regiments to Jelalabad; but he had not the power, even if he had the will, to make good his words. Our share of the agreement was honourably carried out to the minutest tittle; that of the Afghans was murderously broken.