I always thought the eels names were Flaxom and Jaxom (it was actually Flotsam and Jetsam). Please forgive this an any other inaccuracies!

...

Jaxom came to as the cold surf sucked at his body, trying to peel him from the craggy, black shore and swallow him. Pushing himself over, he faced the sky, the rocks digging into his back as another wave boiled up the shore and sought to drown him. The full knowledge that he could neither swim nor breath the salt water sent him coughing and scrabbling up the rocky beach. Triton had at least given him the wits of a human to go with this disjointed, stumbling form.

And what of Flaxom? His twin was not entwined with him as they had been from birth. Jaxom cast about the baron rocks with his human sight, then shut his eyes and sought the twin-sight. It was strange and confusing to try and focus with new senses pulsing at him from every side, but he finally found that he and his brother had retained the bonded vision; Flaxom was somewhere staring at the clouds.

Jaxom was finally able to stand upright on the steep ascent and found his view opened up over the rise at the top of the rocky ledge that slid to the sea. He saw Flaxom almost immediately; a dark-skinned human with darker hair in a wild, seaweed tangle about his face laying on bare rock staring at the sky with wide, wild eyes.

"Flaxom?"

The other looked toward Jaxom at the strange sound that was his name. A small smile of relief touched his lips and he reached his hand toward Jaxom. At that moment, a breaker of angrily pluming ocean surged into the crevasse and licked Flaxom off his precarious ledge.

Without even hesitating, Jaxom flung himself from the crag he had just conquered after his brother.

They hit the ocean hard as a breaker pounded the rocky outcrop. Jaxom had somehow caught his brother just as they entered the water and clung to him as the monster ocean slammed them with nature's force into the jagged wall of the cliff. Flaxom took the full brunt of the blow and immediately became dead weight. Jaxom flailed desperately to find a handhold on anything while they were still above water before the surge returned. He hooked his arm around a chunk of driftwood caught between the boulders and with the strength born of an instinct for survival, hauled them both up to a protruding ledge just as the ocean thundered and boiled against the rocks again.

"Don't you leave me here," he moaned as Flaxom's body spasmed and sea water was forced out of his lungs. "Don't you leave me here alone!" Dark blood ran over his hands as he clutched his brother's hair, a deep score marking Flaxom's scalp and painting brilliant streaks down his neck and shoulders.

When the bleeding stopped, Flaxom still lived, but his eyes reflected nothing but the darkening sky.