Island Fall

[This story is also being posted on Royalroad] After being thrown overboard from their ship, Frisk wakes up on a strange remote island that they have never heard of before. Serphile Island. They quickly realize that the island's population is mutated and has the ability to use magic. They also quickly learn that the entire island is populated by parasites capable of taking over the world. With the population harboring a grudge on the outside world, Frisk must make their way through the island if they ever want to find a way home, and maybe save the world. Frisk knows that if the parasites escape, the world will turn into a full-blown apocalypse. In order to stop that, they must somehow manage to stop the king of the island and the queen of the parasites. They will discover friends on their way through their journey as well as many dangers and mystery. Yet they can't help but think... ....is killing the islanders and stopping the parasites for good the right answer? After all, everyone here, even the animals, has thoughts. Yet, if they don't do anything, everyone Frisk knows might die. What is happening here? What is the secret of this strange island? Who, or what is Luna? With all of these questions, Frisk must start her journey, praying that whatever choice they make will be the right one. [Despite being an Undertale Fanfic, or AU, Island Fall is far different from Undertale. Please take note that this is a gory, traumatizing, psychological story that is a far cry from the original story of Undertale. And no, there are no actual "monsters" here. Everyone is either a mutated human, animal, or something else]