true. But there is need to be cautious. Whoso wishes that water should not bear him away must know how to swim, and whoso goes through a pathless forest must stop often to note the direction in which he should travel. Do you understand?"
"As clearly as sunshine."
"We are free to draw back, and we are bound to do so if it will be better for the country; but we shall not be able if Prince Boguslav stays longer in Podlyasye. Has he lost his head, or what? If he stays there, he must declare for one side or the other, — either for the Swedes or Yan Kazimir, — and that is just what would be worst of all."
"I am dull, your highness, for again I do not understand."
"Podlyasye is near Mazovia; and either the Swedes will occupy it or reinforcements will come from the Prussian towns against the Swedes. Then it will be necessary to choose."
"But why does not Prince Boguslav choose?"
"Until he chooses, the Swedes will seek us greatly and must win our favor; the same is true of the elector. If it comes to retreating and turning against the Swedes, he is to be the link between me and Yan Kazimir. He is to ease my return, which he could not do if previously he had taken the side of the Swedes. But since he will be forced to make a final choice if he remains in Podlyasye, let him go to Prussia, to Tyltsa, and wait there for events. The elector stays in Brandenburg. Boguslav will be of greater importance in Prussia; he may take the Prussians in hand altogether, increase his army, and stand at the head of a considerable force. And then both the Swedes and Yan Kazimir will give what we ask in order to win us both; and our house will not only not fall, but will rise higher, and that is the main thing."
"Your highness said that the good of the country was the main thing."
"But do not break in at every word, since I told you at first that the two are one; and listen farther. I know well that Prince Boguslav, though he signed the act of union with Sweden here in Kyedani, does not pass as an adherent of theirs. Though the report will be baseless, do you declare along the road that I forced him to sign it against his heart. People will believe this readily, for it happens frequently that even full brothers belong to different parties. In this way he will be able to gain the confi-
