"Munitions works! Whatever are you doing that for?" asked Billy surprised beyond measure. It seemed incredible that the slim, light-hearted girl of his boyhood days should be toiling in this manner.

"Because I had to do something," replied Betty simply. "We lost almost everything. Besides, it was an opportunity to do something practical for the war. People of all social grades do, you know."

"I'm sorry about your financial misfortune," said Barcroft sympathetically.

"And so am I—very," added the girl frankly. "But it is unnecessary to enter into details. This is my home."

They came to a standstill in front of a row of two-storeyed houses. Owing to the darkness it was impossible for the flight-sub to form an accurate idea of the pretensions of the place; but at any rate it was a pitiful contrast to "The Old Rectory," the Deringhames' house at Alderdene.

"The works were nearly hit by the bombs," continued Betty. "We had just started the night-shifts, but the girls were sent off after the raid was over. One of them was so frightened that I had to take her home. That's why I was late."

"Fortunately for me," declared Billy earnestly.

"Yes, a stranger would have some difficulty to find his way on a night like this," said Betty inconsequently. "You are on a straight road now, until you come to a railway arch. Just beyond you'll notice a line of overhead wires if you keep your eyes open. Just beyond is a path on the left. That will take you past Ladybird Fold."

"I'll call in the morning," said Barcroft.

"We—that is, mother and I, will be pleased to see you," replied the girl. "Goodnight—Billy."