So the boys waited, listening intently at the door.
But there were no further sounds from within the room. At length, satisfied that his father had indeed been left alone, Frank fumbled for the latch of the door.
Noiselessly, he managed to open it. He pressed in on the door until it was open about an inch, then he peeped through the aperture.
He found himself on the threshold of a sort of cellar, a damp and mouldy chamber, of about the same size as the storage room in the heart of the cliff, with the difference that whereas the first room was a cave in the rock, this place had been dug out of the earth. It was floored with planks and a lone electric light cast a yellowish illumination over the scene. There was a crude table and a few chairs, while in one corner stood a small camp-bed.
On this bed he spied his father.
Fenton Hardy was bound hand and foot to the cot, so tightly trussed up that he was unable to move more than a few inches in any direction. He was lying flat on his back, staring up at the muddy ceiling of his prison. On a chair beside the cot was a large sheet of paper, presumably the document the smugglers were asking him to sign.
The detective did not hear the door open. As Frank looked at him he was conscious of a change in the appearance of his father, a change that shocked him extremely. For Fenton Hardy was thin and pale, his cheeks were sunken and he looked like a man who was famished for want of food.
Frank opened the door a little wider and tiptoed into the room. Joe followed quietly.
They knew that there was danger of the smugglers returning at any moment. They knew that they must work swiftly and quietly if they were to effect the release of their father.
A slight sound attracted Fenton Hardy’s attention and he slowly turned his head. When his gaze rested on the figures of the two boys who were stealing across the floor toward him he almost uttered an exclamation of amazement but he managed to check the involuntary utterance, although his face lighted up with relief.