The historian Cox says that he could find nothing that looked like war during the year 1653, though the rebellion was not officially declared at an end until September 26. The early part of the year cannot, however, be considered as peaceful. There was still some resistance in Ulster, and the Irish also possessed a fortified post in the island of Innisbofin. To that remote stronghold Murtagh O'Brien had repaired after Muskerry's surrender, and with the help of some arms and ammunition from the Duke of Lorraine he continued to give trouble on the mainland. The fort of Arkin on the great island of Arran had been surprised through 'the supine carelessness and negligence of Captain Dyas' shortly before Fleetwood's arrival, and the Irish garrison under Colonel Oliver Synnot did not surrender until the middle of January. Among those who took refuge in Innisbofin were Roger O'More, the original contriver of the rebellion, Bishop Lynch of Clonfert, Brian MacPhelim O'Byrne, and Colonel Dudley Costello. The governor was Colonel George Cusack, whose family had property in the Pale, and he soon came to terms with Reynolds. The islands of Bofin, Turk, and Clare were surrendered and facilities were given for transporting 1000 men into the Spanish service. The officers retained their arms, 'prelates and clergymen' being allowed to go with the rest. Some of the articles were more indulgent than usual, but Colonel Jones thought them 'suitable to the difficulty of gaining that place by force.' Only a few days before, near the neighbouring castle of Renvyle, on the mainland, 270 men who were on their way to attack Bofin fell into an ambuscade of 800 Irish, and only got through with the loss of four officers and forty-six men. According to the Aphorismical Discovery, O'More, who could expect no mercy if captured, was basely deserted by Cusack and the Bishop of Clonfert. Donogh O'Flaherty, who was also left behind, was shot by the soldiers; but O'More, after enduring great hardships, got away to Ulster and lived for some time as a fisherman.[241] [Sidenote: The last stand in Ulster.] [Sidenote: Surrender of Cloughoughter, April 27.] [Sidenote: Murder.]