It seems certain that the plan of the enterprise had been laid down before Palmer left London, though no formal instructions were given to him in writing. It was understood between him and the Government that he was to travel about in the Desert and Peninsula of Sinai, and ascertain the disposition of the tribes; secondly, that he was to attempt the detachment of the said tribes from the Egyptian cause, in order to effect which he was to make terms with the sheikhs; thirdly, that he was to take whatever steps he thought best for an effective guard of the banks of the Canal, and for the repair of the Canal, in case Arabi should attempt its destruction. Lastly, he was instructed, probably at Alexandria, to ascertain what number of camels could be purchased, and at what price. Arrived at Alexandria, Palmer put himself under the orders of Admiral Lord Alcester, then Sir Beauchamp Seymour, who, after a few words of welcome and encouragement, ordered him to go at once to the Desert and begin work. It was decided that he should proceed by steamer to Jaffa, thence to Gaza, and across the Desert to Tor in the Sinaitic Peninsula, where he could be taken up and join the fleet at Suez. On the morning of July 9 he reached Jaffa, where he bought his camp-equipage and stores, hired a servant, and opened communications with certain Arabs of the Desert, whom he ordered to meet him at Gaza. We know the details of this time from a long letter which he wrote to his wife just before he left Jaffa. ‘It is bad enough here where I find plenty of people to talk to and be civil to me; but how will it be when I am in the Desert with no one but wild Arabs to talk to? Not that I am a bit afraid of them, for they were always good friends to me; but it will be lonely, and you may be sure that when I sit on my camel in the burning sun, or lie down in my little tent at night, my thoughts will always be with you and our dear happy home. I am quite sure of succeeding in my mission, and don’t feel anything to fear except the being away for a few months.... I feel very homesick, but quite confident.’