As soon as Mount Young was in our possession, the troops were busily employed in spreading devastation through the Carib district. In Grand Sable and other parts of the country, many houses were burned, and more than 200 pettiaugres and canoes destroyed. Several hundred slaves were also sent out, under the protection of military detachments, to dig up and destroy the provisions of the enemy. On the 4th of July, a detachment of the 46th and Malcolm's Rangers took, after a sharp action, the enemy's post at Chateaubellair, near Walliabon, with a loss of 14 killed and 39 wounded of the 46th, and 2 killed and several wounded of Malcolm's. The evacuation of St. Lucia by Brigadier-General Stewart was, however, as far as St. Vincent was concerned, attended by fatal consequences. The proximity of the former island enabled the French unceasingly to pour in new reinforcements to their Carib allies in St. Vincent; and, towards the end of August, a small British post which had been established at Owia was surprised by a detachment from St. Lucia, and the whole of the guns and large quantities of supplies captured. Encouraged by this success, Victor Hugues resolved to endeavour to wrest St. Vincent from the British, as he had already wrested Guadaloupe and St. Lucia; and, in the middle of September, he landed in St. Lucia with a force of some 800 men. These, embarked in four vessels, which escaped the _Thorn_ and _Experiment_, the British ships of war on the station, landed at Owia Bay, St. Vincent, on the morning of the 18th of September; and the force of the enemy was now so vastly superior to that of the British, that it became impossible for the latter to retain their advanced positions. Orders were at once sent to Lieutenant-Colonel Leighton to abandon Mount Young without delay, and retire to the vicinity of Kingston. They were carried into execution on the night of the 19th. Having destroyed their supplies and left their lights burning in their huts as usual, to deceive the enemy, the troops were silently put in motion. They reached Biabou the next evening, and, bringing in the detachment which was there quartered, reached Zion Hill on the 21st; being then distributed among the posts in the neighbourhood.