He had his head-quarters in a huge cavern in the face of the limestone precipices of Mount Parnassus, which he had strongly fortified, and in this he kept his treasure that he had accumulated and lodged his family. In the meantime dissension had broken out among the Greeks, between the leaders of the bands that did all the fighting, under Kolokotroni, and the Executive Government that had been elected by the primates, at the head of which stood Mavrocordato. A complete rupture had ensued at the end of 1823 between the parties, and the guerilla chieftains absolutely refused obedience to the Provisional Government. In the same winter of 1823-4 Trelawny accompanied Odysseus as _aide-de-camp_ upon an expedition into Negropont, and on their return to Athens, where Colonel Stanhope then was, Trelawny sent a letter to his mother, of which the following is an extract:-- "ATHENS, _18th February, 1824._ "DEAR MOTHER,--I am enabled to keep twenty-five followers, Albanian soldiers, with whom I have joined the most enterprising of the Greek captains and most powerful--Ulysses. I am much with him, and have done my best during the winter campaign, in which we have besieged Negropont, to make up for the many years of idleness I have led. I am now in my element, and the energy of my youth is reawakened. I have clothed myself in the Albanian costume and sworn to uphold the cause. "Everything here is going on as well as heart can wish. Great part of Greece is already emancipated. The Morea is free, and we are making rapid progress to the westward. Lord Byron spends £5000 a year in the cause and maintains five hundred soldiers. This will in the eyes of the world redeem the follies of youth. "Your affectionate son, "EDWARD TRELAWNY." Trelawny and Odysseus desired to get Lord Byron to be with them, but this plan was frustrated by the death of the poet on April 19th, 1824. Colonel Stanhope proposed a congress of the civil and military leaders, so as to effect a reconciliation between the two embittered elements that were weakening the resistance against the common enemy, the Turk. Odysseus consented to attend this meeting at Salona, and Trelawny also agreed to be present. Mavrocordato looked on Trelawny with suspicion as intimate with Odysseus and as his brother-in-law, and he foisted upon him an English spy named Fenton, and an accomplice of the name of Whitcombe, with secret instructions to make away with him. After returning from Salona, Trelawny was with Odysseus in Eastern Greece, carrying on the war in guerilla fashion without any great results. In the autumn he was at Argos, whence a letter (certainly his, though unsigned) was sent to his brother Lieutenant Harry Trelawny, R.N.