"The wind," said Arnold.
The key turned twice in the lock.
"They are locking us in," exclaimed Bertha.
Arnold rushed to the door—shook it—but in vain.
"Alas! I am lost! It is nearly night, and shut up here with you, at the end of the park!"
"But the window!" cried Arnold.
He hastened to it. He looked out, and saw no one.
He tried to break it. Impossible! The lead-work was so close that it bent, but did not break, and the window was in a fixed and immovable frame. That which lighted the door at the farther end was similarly fastened.
"Mon Dieu! have mercy upon me!" said Bertha, falling upon her knees.