On the 7th of March the Nemesis was sent to reconnoitre Chusan, having Captain Collinson also on board, for the purpose of making surveying observations during the trip. They passed round the western and northern sides of the island, and having reached Tai-shan, which is about six or seven miles distant from it, they steamed all round that island, looking into the different bays, and spying into the villages, to see if they could discover a camp, or any signs of the presence of any troops. The navigation round the island is dangerous, for there are several rocks, at different points, barely covered with water.

At length they anchored off a small town in a bay on the south-eastern side of the island, where several junks were seen at anchor. To the north-east of the town stood a remarkable hill, from which it was expected that a view of the whole island could be obtained. Here the officers landed, with Captain Collinson's boat's crew, and part of that of the steamer, together with eight artillery men. There was no appearance of hostility, and they all marched on to a second village, in which, as well as in the first one, it was asserted by the people that there were no soldiers left in the island, as they had all gone away to another island in the neighbourhood. The party then returned on board, and the steamer moved up towards a creek, at which the water was too shallow for her to enter.

In the evening Captain Collinson again landed in his gig, with a view to ascend to the top of the hill; and so confident was he that there were no armed men upon the island, that he declined taking an escort with him, and was with some difficulty persuaded to allow two armed artillerymen to follow him, and was himself quite unarmed. Lieutenant Bates accompanied him. Scarcely had they reached the top of the hill, and were beginning to take their observations, when a large body of armed Chinese were observed, emerging from their hiding-places in the creek in which they had landed, which was at a point about two and a half miles from the steamer. Evidently their intention was to cut off their retreat, and make them prisoners. Flight was therefore the only resource, and had it not been for the assistance of the two artillerymen, they would have stood little chance of effecting their retreat to the boat. These two men, however, by coolly retreating alternately, the one firing, while the other reloaded as he withdrew towards the landing-place, managed to keep the Chinese in check, so that Captain Collinson reached the boat in safety.

It was now a question what steps were best to be taken on the following day; for there could be little doubt that if the steamer left the island without landing a body of men to attack the Chinese soldiers, who evidently were in force, a report would be sent to the Emperor of a great victory having been gained, in which the barbarians were, of course, driven into the sea, and their vessels sent away from the coast. It was therefore resolved to make an impression upon them; and accordingly at five o'clock in the morning, the four boats of the steamer, manned and armed, under Captain Collinson and Captain Hall, with Lieutenant Bates, Mr. Freeze, and other officers of the ship, pushed off from the vessel, and proceeded up the creek. They had also eight artillerymen with them; and the two engineers likewise volunteered their services. The party numbered altogether sixty-six, including officers.

About two miles and a half up the creek they discovered a number of transport junks, crowded with Chinese soldiers, with their banners flying. A little distance from the banks of the creek, which gradually sloped up towards some detached houses above, were posted another body of the enemy; altogether, there were probably five or six hundred men.

Gradually, as the boats advanced, the soldiers who had not before landed joined the other body on shore, and commenced a distant fire of ginjals and matchlocks, without doing any mischief. It was, however, returned by the boats as they neared them, and their crews were just about to land, when a thick smoke was observed to issue from one of the nearest troop boats. It immediately occurred that this might arise from a train having been laid to blow up the boats if they should be taken possession of. It was therefore thought prudent to land a little lower down.

The moment the boats began to descend, the Chinese, thinking they were retreating, set up a loud shout, and advanced upon them, brandishing their spears in defiance, thinking that the victory was already won. In this they were soon to be undeceived. Our men all landed as quickly as possible, and were formed into two columns; the right, or advanced one, led by Captain Hall himself, and the left by Mr. Freeze (mate R.N.), the chief officer of the Nemesis. Immediately they were ordered to advance, the Chinese began to waver at their bold front, and the first volley poured into them, within pistol-shot, completely put them to flight. They were now so closely pursued that their military chest was captured, in charge of a mandarin and two soldiers, who were killed. The prize was found to consist of only two thousand dollars, but even that was a pleasant addition to the prize fund. The Chinese were pursued for some distance, about fifty of them being left upon the field, and eight taken prisoners. The houses on the rising ground above, in which some of the soldiers had been quartered, and also several of the transport junks in the creek, were immediately set on fire.

After collecting some of the scattered arms, as trophies of victory, the little party again returned to the steamer, the Chinese having been totally dispersed. She rejoined the Admiral, at Chusan, the same evening.

So far this little gallant affair had been perfectly successful, in discovering the rendezvous of the Chinese; but it was believed that many of their soldiers had already crossed over to Chusan, disguised as peasants, in readiness to act in concert with other parties, whenever the attack should be made on the island. Captain Collinson was, therefore, sent back again in the Bentinck, with orders to prevent the escape of the soldiers from the island of Tai-shan, and the Nemesis was directed to follow as soon as she could get in her fuel.