soldiers, and even the bombardment of a few hours earlier appeared to have been forgotten. But of course there was grief in many hearts.
It was early the next morning, when Tom and Jack were getting ready to go back to the ruins in the Rue Lafayette, that, as they left their lodgings, they heard in the air above them the familiar sounds of aeroplanes in flight, and the faint popping of machine guns, to which was added the burst of shrapnel.
"Look!" cried Jack. "It's a battle in the air. The Huns are making another raid. Now we'll see how they bomb the city."
But it did not turn out to be that sort of raid. The German craft were flying low, apparently to get a view of the havoc wrought the day before. Possibly photographs were being taken.
But the French aeroplanes were ready for the foe, and at once arose to give battle, while the anti-aircraft guns roared out a stern order to retreat. It was a battle above the city and, more than once, Tom and Jack wished they could be in it.
"We'll have to get back to our hangars soon," mused Tom, as they watched the fight. "We can't be slackers, even if I can't find my father," he added bravely.
The French planes were too much for the
