The little captain felt no mental sensation except one of wonder and of awe; no physical impression save a pressure as of a great weight on her head and a roaring of mighty waters in her ears. She no longer had any idea of being afraid. At the first plunge into the water she had shut her eyes, but now, as she approached the bottom of the bay, she kept them wide open. The water was clear as crystal, like the reflection in a mammoth mirror. She could see nearly fifty feet ahead of her. Captain Jules walked just in front of her, swinging his great body from side to side, peering down into the sandy bottom of the bay. Madge discovered that the only way in which she could get a view, except the one directly in front of her, was by turning her head inside her helmet, to look through her side window glasses. The goggles over her eyes gave her just the view that a horse has with blinkers. There were hundreds of things that Madge would have liked to confide to Captain Jules. However, for once in her life, she was compelled to hold her tongue. Her eyes, her hands, and her feet she could keep busy. Now and then she gave a little ejaculation of wonder inside her copper helmet at the marvels she saw. No one heard her cry out. Captain Jules wasted no time. He was exceedingly business-like. He motioned to Madge just where she should go and what she should do, and she obediently followed. There were long, level flats of sand in the bottom of Delaware Bay, like small prairies. Then there were exquisite oases of waving green seaweed, gardens of sea flowers and ferns, and hillocks of rocks, with all sorts of queer sea animals, crabs, jelly-fish, and devil-fish, scurrying about them. Caught in the moss, encrusted on the rocks, sunken in the yellow sands, were opalescent, shining shells and pebbles, each one more beautiful than the last. Madge did not realize that if she carried these shells and pebbles above the water they would look like ordinary stones. Every now and then the young diver would stoop and drop one of them in her netted bag with a thrill of excitement. Again and again Captain Jules had assured Madge that she must not expect to find any pearls of much value in Delaware Bay. There were few pearls in edible oysters. The beds about Cape May were meant to supply the family table, not the family jewels. Of course, it was true, the Captain admitted, that a pearl did appear now and then in an ordinary oyster. Yet this was an accident and most unlikely to occur. Madge had really tried not to believe that she was going to find any kind of prize in the new world under the water. In spite of all her efforts she had been thinking and planning and hoping. Perhaps--perhaps she would find a pearl of great price. Then her troubles would be at an end.