"Desperate, indeed."

"They gave you a very warm reception, my boy," said Mr. Mole.

"It will be warmer still when they capture us," said Harkaway.

"Oh, gracious, gracious! how shall we ever get out of this? Oh, dear! oh, dear! I wish I was in London once more," cried the orphan, wringing his hands.

His distress contrasted strongly with the calm, self-possessed demeanour of the beautiful Thyra at this time of supreme peril.

"There is but one thing we can do," said Jack.

"What is that?" asked Harry, anxiously.

"Break through that wall and get into the mosque; that's the only side of the building which isn't surrounded."

"But it is impossible to pierce such a wall as that," said Harry.

"We'll try, at all events," Jack responded. "Come, boys," he added, "one last desperate effort, and we'll baffle 'em yet."