"I have a new thought," he said. "Perhaps if we could make ourselves heard from down here, some one might come to our relief. Let us halloo, ma'amselle, with all our might."

It would have been ludicrous if it had not been so pitiful to hear them shouting in concert at the top of their voices. Indeed, they paused now and then to look at each other with laughing eyes, and to pant with exhaustion from their efforts, but the shouting was kept up at intervals until Van Zandt's watch recorded the hour of midnight.

Then he said, wearily:

"There is no help for it. We shall have to pass the night here, I suppose."

He opened the door and began to push his sofa out into the narrow little passage.

"What are you going to do?" Marie asked him, with large eyes of wonder.

"I am simply converting this passage into a temporary bedroom for myself," he answered. "Good-night, Ma'amselle Marie; I leave you my room and bed. Lie down and rest, and in the morning we will try to devise some new plan for our escape."

He opened and shut the door, and Marie was alone. She threw herself wearily on the luxurious bed, and in spite of hunger and thirst and terror, slept heavily for hours.

When she awakened, she felt sure that day must be far advanced. She found a large pitcher of water and poured out some into a basin and bathed her face and hands. Then she peeped out into the dark passage for Van Zandt.

He was sitting up composedly on his sofa, as if he had been awake for hours.