"Now what's the matter?" exclaimed Chester.

"Oh, nothing much," said Hal, "only that about fifty thousand Bulgarians have nabbed my aeroplane."

"What?" exclaimed the others.

"Exactly," said Hal, "and that's not the worst of it."

"My goodness!" exclaimed Stubbs. "What can be worse than that?"

"Well," replied Hal, sinking into a chair. "On the other side of us I made out about a million Serbians advancing."

"Great Scott!" exclaimed Chester. "You mean we are in between them?"

"Precisely."

"Oh, my," groaned Stubbs. "This will be the last of us for sure."

"Quiet, Stubbs," said Hal sharply.