Jon scrambled from the water onto the plank. His parent put an arm around him and drew him closer. (_Here he comes_, Arkor said.) His other hand went to the seal of authority around his neck, as though it gave him some sort of protection. "There it is," Jon suddenly cried. "That's what I saw. That's why I was afraid to swim back." (_There it is_, Jon said.) A phosphorescent disk was shimmering under the surface of the water. The Second Fisherman raised his spear higher. "What is it?" he asked. (_What is it this time?_ Petra wanted to know.) Indistinct, yet nearly the size of the ship, it hovered almost three breast strokes from them, glowing beneath the surface. (_I'll have a look_, said Petra.) The Second Fisherman suddenly dove forward and disappeared. Still holding to the frame of the boat, Jon and his parent went under the water where they could see better. One of Jon's eyelids, the transparent one, was actually an envelope of tissue which he could flood with vitreous solution when he was submerged to form a correcting lens over his pupil. Through the water he saw the Second Fisherman bubbling through the water toward the immense, transluscent hemisphere that dangled ahead of them. The Second Fisherman stopped with an underwater double-reverse and hovered near the thing. (_It's a huge jellyfish_, Petra told them.) "Can't figure out what it is," the Second Fisherman signaled back. Then he extended his fork and jabbed at the membrane. The seven tines went in, came out. The jellyfish moved, fast. The tentacles hanging from the bottom of the bag raveled upward like snagged threads. The body bloated and surged sideways. Two tentacles wrapped around the Second Fisherman as he tried to swim away. (_Eep_, said Petra. _These things hurt._) Jon's parent was on top of deck again, shouting orders to the boat-hands. The ship swung toward the thing which was now heaving to the surface. (_Look, let's finish this thing up for good. Concentrate._ That was Arkor. _There...._) (From beneath the water they felt Petra reach her mind into the pulsing mass: _There...._) (As the tentacles encased her and she jammed the spear home again and again through the leaking membrane, she felt Jon's mind join in: There....) The boat rammed into the side of the jellyfish, the planks tearing away the membrane and the thick, stinging insides fountaining over them. Now it nearly turned over, and tentacles flapped from the water in wet, fleshy ropes. The Second Fisherman was caught in one of the snarls. Their green faces were lighted from beneath by the milky glow. (_There...._) Suddenly it tore away from the planks, going down beneath the water. (_There...._) The Second Fisherman's head bobbed to the surface, shook the green fin that crested his skull, and laughed. (_There...._)