In the meantime, Mr. Hardy was busy. He had profited by his previous experience.
When the smugglers seized him and attempted to tie him to the bed for the second time he had made use of a trick frequently employed by magicians and professional "escape" artists, who guarantee to escape from ropes and strait-jackets. He had expanded his chest and held his muscles rigid, keeping his arms as far away from his sides as possible, so that later, when he relaxed, he found that the ropes did not bind him as tightly as his captors had intended.
This gave him a small leeway. He found that the ropes were especially slack about his right wrist, so he began to work laboriously to free himself. For a long time he thought it would be impossible, and the rope chafed his wrist, but at last he managed to slide his hand free.
Joe and Frank watched this performance with amazement, and new hope came into their eyes as they saw their father slowly groping for one of the knots. The detective fumbled at it for a while. It was slow work, for he had but one hand free, but in their haste the smugglers had not tied the knot as firmly as they should, and before long Fenton Hardy had loosened it to such an extent that soon the ends of the rope fell away.
