How Does The Book Of Eels Ending Explain Eel Migration?

I was bound to a Blessed Lineage System and thrown into a world of shifters. After a rabbit shifter named Rowan saved me, we slowly fell in love. Together, we had three little rabbit babies. But soon, the other shifter clans discovered my strange gift. While Rowan was out hunting, they took me away and forced me to bear their heirs. Rabbit shifters were born weak. To bring me back, Rowan fought with everything he had in the arena, only to be beaten down by the stronger clans. All he could do was watch as they dragged me away. When I finally escaped and returned to him, he did not despise me. Instead, he treated me even more tenderly, doing everything he could to make it up to me. But over the next five years, I was taken eight times. Again and again, I gave birth to children who were not his. I begged the system to send me home. But it told me I could never go back. Then, one day, I was taken again. Before I lost consciousness, I heard Rowan speaking to a wolf shifter. “Don’t hurt Ayla. She’s afraid of pain. Once she gives birth, send her back to me.” The wolf shifter let out a cold laugh. “She’s just a breeding vessel. Why are you acting so worried? Don’t worry. You’ll get what I promised. I’m far more generous than that black serpent.” Only then did I understand. Rowan had been trading me for resources all along. And because I was afraid he would blame himself, I had foolishly endured all that pain for him. I had almost given up completely. Then the system’s cold voice, silent for so long, suddenly rang in my mind. [Ding. System mission updated. Once the host has continued the bloodline of every shifter clan, she may return to her original world.] I froze. Only two clans were left. The wolves. And the foxes.

Three hours after my engagement banquet ended, I was stuffed into a burlap sack and thrown straight into the ocean. By the time deep-sea divers found me, my body had swollen into something grotesque and barely recognizable. The police called my fiancé right away to come identify the remains, but he could not have sounded less interested. "So, she's dead. So what? I'll show up at the funeral when the time comes." Left with no choice, the police dialed the second starred contact in my phone. It was my own brother. He laughed so hard that he doubled over. "Dead? Last I checked, it's not April Fools'. Not a funny joke. And do me a favor. Tell Selene Corvin I couldn't care less about her corpse. Throw it back in the ocean to feed the fish. I don't care." He did not know that I did end up as fish food for a very long time. The moment my remains appeared on that massive screen, however, both my fiancé and my brother lost their minds.

Fairytales don’t always come from the earth... until her. 
 Mermaid legends are human fables, but beneath the waves, war is looming. A missing daughter is the only hope for a dying species. 
 Rescued during a typhoon, Galene finds herself in a new world amongst a dangerous species—humans. With no memories of her watery pasts, she doesn’t see the predators closing in until it’s too late.
 Stralath is a shape-shifting bounty hunter dedicated to keeping the peace in a violent universe. His earthly mission? To find the elusive mermaid who he’ll dangle in front of a dangerous oceanic pod.  Except Galene is not what he expected—she’s an innocent caught in a dangerous game of extinction. An angel who paints with color and smiles at the world.  She is easy prey, and Stralath abandons his mission, unleashing his brutal self to guard her heart and life. 

Not long after getting married to my husband, he says he wants to teach me how to scuba dive. My leg cramps when I'm practicing alone in the deep sea. However, my husband, a swimming instructor, chooses to save his unattainable love—she's jumped into the sea to commit suicide. I don't ask him for help. Instead, I allow myself to slowly sink. In my past life, I stopped my husband from leaving. He saved me with gnashed teeth and allowed his first love, Millie Quirke, to drown. By the time he went to save her, she'd already disappeared in the water. He comforted me and told me it was okay, that he was glad he'd saved me. However, one night, he brought me back to the seaside. Just as I let my guard down, he grabbed my neck and plunged my face into the water. Then, he dragged me out before I could suffocate. "You were just cramping—it would've passed! But Millie got dragged away by the current because of you! You can remain in the ocean with her!" When I open my eyes again, I'm back to the day I was scuba diving.

To save the merfolk from slaughter, I seduced the vampire lord himself-Lazarus. He still loved me after all. For three days and three nights, he drowned himself in my body, unwilling to let me out of his arms for even a second. I roused from the haze of fleeting bliss, only to have a searing, corrosive liquid poured mercilessly over my head. "You with eternal healing can taste the sting of agony？" "Yet your trivial suffering pales in comparison to the loss of my kin you brought upon me. It is nothing at all!" "This is merely the beginning. Refuse to reveal where my parents lie hidden, and you shall never break free from this castle." He was convinced that I alone had destroyed everything he held dear. Holding the entire merfolk’s lives hostage, he confined me within the castle. Time and again, he tore open my chest by force, wrenching out my pearl of the mer, feeding its essence to Isolde to mend her frail flesh. He condemned me to sleepless nights, forcing me to cleanse the filth he left behind. Barefoot, I was made to dance the mermaid’s lament upon razor-sharp silver blades, writhing in pain to lull Isolde into slumber. Later, Isolde feigned a pregnancy. Driven by false tenderness for her, Lazarus took to slicing chunks of my immortal mermaid flesh with cold blades, brewing them into nourishing potions for her. Hatred for me burned deep in his bones, yet whenever I was on the brink of death, he would still force his own blood down my throat to keep me alive. "You presume too much on my lingering love for you, choosing silence over the truth, do you not? Aurora… tell me, what became of my parents?" I endured in silence, bearing witness to his love torn between hatred and longing. Soon, I would no longer need to guard that fatal secret. For a mermaid who dwells on land for three years shall wither and perish, severed from the sea that gives her life. Only three days remained until my final breath.

Year XX26 when a plane had gone missing. No one has heard from it since then. Search parties were called off and passengers were declared dead. People tried calling out to them through their phones. They hear it ring but no one answers. Nathalia Trayce's father was on that plane and she's determined to find out where or what exactly happened to him; by going to the place that her father was suppose to go. Hoping to find more clues, she boarded a plane passing through the Pacific Ocean when an unexpected thing happened; their plane crashed and they suddenly found themselves in an underwater land. The Atlantis, where they found out that they were responsible for the missing planes in order to save them from the government. At least, those who posses Atlantean genes - a superior gene that help improve their physical and mental abilities. But why can Nathalie hear the thoughts of sea creatures - an ability that is suppose to be for Byron, who's the said reincarnated demigod? Trained by an Atlantean general named Skyr, and learning that her ex-bestfriend, Trei, was actually one of the Atlantean rebels. Nathalia had to choose which side to take. Or in her case, who to believe.