The owner and the commander were busy in instructing the ship's company in regard to what would be expected of them as soon as the Bellevite was in motion again. All the men spoken to smiled as they heard what was said to them, and they evidently regarded the whole affair as a decided pleasantry. But they all promised to be very discreet, and to say only what they had been told to say if they were called on for any information by Confederate officials. In the mean time Christy was very busy with his pupil, who entered heartily into the plan which promised to save him from shouldering a musket in one of the companies of his brother's regiment. He had been quite enthusiastic from the first; and, as he was deeply interested in the result of the adventure, he was a very apt pupil. As the Bellevite approached the Middle Channel, a tug-boat was discovered off Fort Gaines, which immediately began to move towards the approaching steamer. Examined with the glass, a heavy gun was seen on her forecastle. CHAPTER X THE ATTEMPT TO PASS INTO MOBILE BAY The tug appeared to be one of the craft which had been hastily prepared for service, and she did not look like a formidable vessel. Captain Breaker was sure he could blow her out of the water with his heavy guns, on an emergency; but this would be bad policy, and he did not propose to do any thing of this kind. He was not as confident as Captain Passford and his son were that the plan adopted would be an entire success, with the assistance of Percy; but there could be no harm in trying it. He intended to pass as near Fort Gaines as possible, for it was not probable that the works were yet in the best condition; and two miles from Fort Morgan, which was doubtless much stronger, would afford a better chance of escaping any shots fired from it. As the Bellevite approached the channel, where there could not be more than a foot of water under her keel, Christie came on deck, followed by Percy. The latter wore a sort of naval uniform, which his instructor had borrowed for him from his own stock. It fitted him well; for he was no larger than the owner's son, though he was two years older. Percy was to be on duty, on board of the steamer, as a Confederate agent taking the vessel into the bay for service. He was not a little inflated by the position which had been assigned to him, though he had no powers whatever, except in appearance. He had been instructed to conduct himself boldly, and to insist that the vessel was in his charge, when she was boarded by officers from the tug or from the fort. His very nature inclined him to play this part to the best advantage.