The port was full of ships, for twelve thousand men had embarked, at Stockholm and other ports, to reinforce the army and enable the king to take the field in force; and, by the end of the month, the greater portion of the force was concentrated at Dorpt.
Charlie had long since regained his full strength.

As soon as he was fit for duty, he had rejoined, and had been engaged, early and late, in the work of drilling the recruits, and in the general organization of the regiment.

He and Harry, however, found time to take part in any amusement that was going on.

They were made welcome in the houses of the principal merchants and other residents of Gottenburg, and much enjoyed their stay in the town, in spite of their longing to be back in time to take part in the early operations of the campaign.
When they sailed into the port of Revel, they found that the campaign had but just commenced, and they marched with all haste to join the force with which the king was advancing against the Saxons, who were still besieging Riga.

Their army was commanded by Marshal Steinau, and was posted on the other side of the river Dwina, a broad stream.