$BTC The old lighthouse keeper, a man etched with the salt of a hundred storms, hummed a tuneless melody as a lone albatross circled against the bruised twilight sky. Below, the ocean churned, a restless tapestry of emerald and sapphire, occasionally flecked with the fleeting silver of a jumping fish. A forgotten diary, its leather cover cracked and faded, lay open on a rickety wooden table, its last entry detailing a dream of a city built entirely of glass and whispers. The scent of damp earth and blooming jasmine wafted in through the open window, carried on a breeze that had journeyed across vast, unexplored continents. Suddenly, a single, sharp crack of thunder echoed in the distance, a prelude to the impending tempest, and the lighthouse beam swept across the tumultuous waves like a guiding finger, a beacon in the vast, unpredictable expanse of the world.