Castlehaven's army of 6000 foot and 1000 horse were in the meantime ordered to assemble at Granard, but not more than half had arrived when Monro's approach was announced. He left Mountgarret's brother, John Butler, to defend the passage into Leinster at Finnea between Lough Sheelin and Lough Kinale. According to an Irish writer, Butler was given to carousing at critical times, and he failed to maintain his position. Monro advanced as far as Carlanstown Castle, which he burned, but finding that Castlehaven and O'Neill had joined forces at Portlester in Meath, he withdrew northwards again. He had started with provisions for only three weeks. Castlehaven then called on O'Neill to perform his promise of co-operating in an invasion of Ulster with 4000 foot and 400 horse, and O'Neill assured him that he should have no reason to complain when actually operating in the northern province. During the greater part of August and September, Castlehaven lay at Charlemont and Monro at Tanderagee, but there was no general action, and O'Neill was ill nearly all the time. In a skirmish at Scarva on the borders of Down and Armagh, Captain Blair was taken, and about 100 Scots killed. In another encounter between Benburb and Caledon three of O'Neill's officers fell, Colonel Ffennell looking on with some of Castlehaven's horse, but doing nothing to save them. There was evidently no love lost between the Leinster and Ulster men, and at last, about the beginning of October, Castlehaven returned to his own province. O'Neill upbraided him with the conduct of his officer, 'a gentleman I see here, Lieutenant-Colonel Ffennell, with the feather, a cowardly cock, for seeing my kinsmen overpowered by the enemy, some of them hacked before his face, and a strong brigade of horse under his command, and never offered to relieve them.' Castlehaven had very little help from the Ulster Irish, except in the way of provisions. 'O'Neill,' he said, 'began to be very weary sometimes of assisting me with cows,' and attributes the ill-success of the whole expedition to the 'failing, or something else, of General Owen Roe O'Neill.' On the other hand, we are told that O'Neill went to Kilkenny and demanded an inquiry, saying that the foreign residents would think very little of the Confederacy if neither general lost his head. A committee sat accordingly, but no report transpired.[51] [Sidenote: Designs of Antrim.] [Sidenote: His agreement with Montrose, January 1643-44.]