“Charles the Twelfth, being in ignorance of this secret agreement, sent an embassy to Russia, to announce his accession to the throne. The ambassadors were kept a long time waiting for an audience, as the czar was bringing a war with the Turks to a conclusion, and did not wish to throw off the mask until he was free to use his whole force against Sweden. The ambassadors were, at last, received civilly, but the czar evaded taking the usual oaths of friendship, and, after long delays, the embassy returned to Sweden, feeling somewhat disquieted as to the intentions of the czar, but having no sure knowledge of them.
“The King of Poland was more successful in disguising his leaning towards Denmark, sending the warmest assurances to Charles, requesting him to act as mediator in the quarrel between himself and the Duke of Brandenburg, and signing a treaty of alliance with Sweden. But, while Sweden had no idea of the triple alliance that had been formed against her, the intention of Denmark to make war was evident enough, for King Christian was gathering a great naval armament.
“The Duke of Holstein, becoming much alarmed at these preparations, hastened on the fortifications of Tonningen, on the Eider, three leagues from its mouth. The garrison of the place was a weak one, and a thousand Swedish troops were thrown in to strengthen it. The King of Denmark complained that this was a breach of the treaty, but, as his own preparations for war were unmistakable, no one could blame the Duke of Holstein for taking steps to defend his territories.
“As you know, Christian of Denmark died about this time, and was succeeded by his son Frederick the Fourth.
“Last August, he commenced the war, by sending a naval squadron to cover the passage of four regiments into Pomerania. Charles of Sweden, seeing that Holstein must be crushed by its powerful neighbour, called upon Holland and the Duke of Lunenburg, who were with Sweden guarantors of the treaty, to enforce its provisions; and a joint protest was sent to the King of Denmark, who was informed that, if he invaded Holstein, they should consider it a breach of the Treaty of Altena, and treat him as a common enemy. Frederick replied by sending some troops into the duchy.
“No active operations took place, until the beginning of this year. Up to that time, Sweden had not doubted the friendship of the King of Poland, and Charles, at first, could hardly believe the reports he received from the governor of Livonia, that the Saxon troops were approaching the frontier.
“A few days later, however, came the news that they were advancing against Riga. The governor prepared for defence, and hastily mounted cannon on the walls. His powers of resistance, however, were lessened by the fact that the river Duna was frozen over. Fleming, who commanded the Saxon troops, arrived before the town, early in February, with four thousand men. The governor had set fire to the suburbs on the previous day; and Fleming was surprised to find that, instead of taking it by surprise, as he had hoped, the place was in a position to offer a stout resistance. However, he attacked the fort of Cobrun, on the opposite side of the river, and carried it by assault.