"I do," the Swede said; "that is, I engage that he shall be sent off, as soon as he can be fetched from Revel, where he is now interned, and shall be safely delivered under an escort; and that if, either by death, illness, or escape, I should not be able to hand him over, I will return another officer of the same rank."

"I have the czar's commands," the Russian went on, "to express his regret that, owing to a mistake on the part of the officer commanding here, Ensign Carstairs has not received such worthy treatment as the czar would have desired for him, but he has given stringent orders that, in future, any Swedish officers who may be taken prisoners shall receive every comfort and hospitality that can be shown them."

"Goodbye, Doctor Kelly," Charlie said, as he mounted his horse, which had been saddled in readiness for him. "I am greatly obliged to you for your very great kindness to me, and hope that I may some day have an opportunity of repaying it."

"I hope not, Carstairs. I trust that we may meet again, but hope that I sha'n't be in the position of a prisoner. However, strange things have happened already in this war, and there is no saying how fortune may go. Goodbye, and a pleasant journey."

A Russian officer took his place by the side of the Swede, and an escort of twenty troopers rode behind them, as they trotted out through the gate of the convent.

"It was very kind of the king to send for me," Charlie said to the Swede, "and I am really sorry that you should have had so long a ride on my account, Captain Pradovich."

"As to that, it is a trifle," the officer said. "If I had not been riding here, I should be riding with the king elsewhere, so that I am none the worse. But, in truth, I am glad I came, for yesterday evening I saw the czar himself. I conversed with him for some time. He expressed himself very courteously with respect to the king, and to our army, against whom he seems to bear no sort of malice for the defeat we inflicted on him at Narva. He spoke of it himself, and said, 'you will see that, some day, we shall turn the tables upon you.'

"The king will be pleased when I return with you, for we all feared that you might be very badly hurt. All that we knew was that some of your men had seen you cut down. After the battle was over, a search was made for your body. When it could not be found, questions were asked of some of our own men, and some wounded Russians, who were lying near the spot where you had been seen to fall.

"Our men had seen nothing, for, as the Russians closed in behind your company as it advanced, they had shut their eyes and lay as if dead, fearing that they might be run through, as they lay, by the Cossack lances. The Russians, however, told us that they had seen two of the Cossacks dismount, by the orders of one of their officers, lift you on to a horse, and ride off with you. There was therefore a certainty that you were still living, for the Russians would assuredly not have troubled to carry off a dead body. His majesty interested himself very much in the matter, and yesterday morning sent me off to inquire if you were alive, and if so, to propose an exchange.

"I was much pleased, when I reached Plescow yesterday, to learn that your wound is not a serious one. I saw the doctor, who, I found, was a countryman of yours, and he assured me that it was nothing, and made some joke that I did not understand about the thickness of North Country skulls.