The Mysterious Island of Sebald

Once, long before the dawning of modernity, there lay a captivating and isolated island in the Atlantic ocean named Sebald. Shrouded under the perpetual blanket of thick sparkling mist, the island held a world of its own. Inhabited by unusual creatures possessing unimaginable powers, the island was often considered an epitome of endless mysteries.
Everything in Sebald was magical, from glittering beaches with sand crafted out of precious gems, to vibrant skies resonating with heartening melodies of unseen birds. The island was untouched by men and for centuries remained unseen and unheard by the mortal world.
In the center of the island lived its ruler, Skylon, a glorious and wise old creature who was half man and half phoenix. He was the island's guardian and the possessor of the Source, a cosmic stone radiating immense magical energy, the root of all the island's magic. As years passed, life was harmonious on the island under Skylon's rule; the inhabitants lived in peace and everything was well-balanced.
However, on one fateful day, the tranquility was stirred. A prophecy of the grand oracle foresaw the impending doom of the island. It foretold the arrival of a mortal man who would steal the Source, causing the island's extinction. Skylon, however, remained unperturbed. For he knew the island's boundary was impenetrable by ordinary beings.
But unbeknownst to him, a cunning and ambitious explorer named Elric, armed with ancient maps and mythical tales, was weaving his expedition to uncover the island. His overwhelming desire for the unknown led him across treacherous oceans and fierce tempests. Guided by celestial constellations, Enchanted by tales, and propelled by ambition, Elric found Sebald.
As he set foot on the island, Elric was dazzled by its raw bewitching beauty and untamed magic. But his greedy eyes could only see the Source and the boundless power it offered. Disguising himself as a humble wanderer, he got close to Skylon. Sensing no danger, Skylon invited him to the grand palace and narrated the stories of Sebald. Elric, after learning the prime location of the Source, decided to act.
Using a powerful sleeping potion, he put the entire island into a deep slumber, stole the Source, and began his journey back towards the human world. He dreamt of ruling the world with an iron fist with his new-found power. But, as he left the island, the absence of the Source triggered an enormous imbalance in Sebald. The island started succumbing to chaos and destruction.
Just before the island could utterly fall apart, a miracle occurred. Skylon, due to his semi-immortal nature, woke up from the spell and realized the devastating situation. Summoning his remaining power, he sent a psychic plea to the ocean's oldest creature, the Leviathan. Heeding the plea, Leviathan moved by the despair of his old friend, created a great tidal wave that toppled Elric's ship, reclaiming the Source and delivering it back to Skylon.
Elric never returned to recount tales of the island, and the mortal world continued to regard Sebald as a mere myth. But as for Sebald, with the Source regained, the magical island was saved from foreseen doom. Skylon, with the learned lesson, erected additional safeguards around the island, vowing never again to fall for the clever deceit of mortal beings.
The island of Sebald stands today in all its magnificence and enigma, still hidden, and forever protective of its magical essence, a true embodiment of a world that is both mystical and resilient.