The cold water, as a matter of fact, did revive Mischa almost at once, and he sat up, rueful at the loss of his oars. When he was told that a bullet had grazed his scalp and stunned him, he actually grinned.

"So that is what it feels like to be shot!" he said. "Good! Now I shan't be afraid the next time there is going to be a battle, as I was at Kumanovo. What next?"

"I think everyone is wondering about that," said Dick, with a grin. "They don't seem to want to come out after us, and we certainly can't row ashore without oars, even if we wanted to. And I suppose if she's cleared for action, that monitor isn't carrying so many boats that she'll want to send one for us."

"I wish her searchlight would break down!" said Steve, venomously. "Then our fellows on the other side might help us. Mischa, I've got to get over if we can do it. It's very important for me to report what I discovered during the day. Has war been declared yet?"

"It has not been formally declared," said Mischa. "But the King and all the government have gone all the way back to Nish, and most of the troops have marched away to the west, toward Schabatz and Losnitza. There is only a small garrison left in Belgrade."

"To Nish, eh?" said Steve, frowning a little. "That was not the plan of which I heard. The withdrawal was to be only to Kragujevac. They must mean to draw the Austrians on. But I am sorry. I hoped for an invasion."

Suddenly to the east there was a dull roar. The three in the boat stared at one another, and at the same moment there came a wild outburst of cheering from the soldiers on the Austrian bank of the river.

"What is that?" asked Dick. As he spoke the sound was repeated.

"Cannon," said Mischa.

"Yes, cannon!" repeated Steve, his face lighted up. "The first gun of the war! Who knows how many echoes that shot will have? They said that in your country a shot was fired once that was heard around the world. I believe that this is just such a shot, Dick!"