And so they talked until late in the evening, when the time came for
Nellie, Bessie and her mother to report back for their Red Cross
work. The boys returned to their hotel, promising to write often
and to see their friends at the next opportunity.

"I won't forget!" said Tom, on parting from Nellie.

"Forget what?" asked Jack, as they were going down the street
together.

"I'm going to do my best to rescue her brother," said Tom, in a low
voice.

"Good! I'm with you!" declared Jack.

The stay of the two boys in Paris was all too short, but they were
anxious to get back to their work. They wanted to be fighting under
their own flag. Not that they had not been doing all they could for
liberty, but it was different, being with their own countrymen. And
so, when their leaves of absence were up, they took the train that
was to drop them at the place assigned, where the newly arrived
Americans were beginning their training.

"The American front!" cried Tom, as he and Jack reached the
headquarters of General Pershing and his associate officers. "The
American front at last!"

"And it's the happiest day of my life that I can fight on it!" cried
Jack.