## I. Arrival: The Ill Omen
In 1816, the seventh moon of Alexandria witnessed an eerie event as Gadsby’s Tavern, an ancient abode of history that stood tall in the heart of the city, welcomed peculiar guests – a cadaverous young woman, barely clinging to life, escorted by a man who claimed to be her spouse. 
He was an oddity, a silhouette of a man, the shadow wrapped around him like a cloak, his eyes glinting briefly in the candlelight before retreating back into the darkness of his countenance. His lips locked with the iron seal of secrets, and his hands trembled slightly as he supported the barely conscious woman.
## II. The Besieged Strangers
The wife leaned onto her assumed husband, her once rosy cheeks now wore an unhealthy pallor. Life was a cruel puppeteer, playing an ominous symphony with her vitality like a marionette dancing to the ghostly tune. The patrons looked on, caught in the ethereal ballet of suspense unfurling before their eyes.
Aware of their arrival’s clandestine nature, the husband shrouded their names in enigma and pleaded for the local medic to deliver her from the icy grip of death. His voice, strained with the effort of keeping despair at bay, resonated through the quiet city night. Baffled, yet intrigued, the locals conceded to his desperate request and swore to honor the secrecy, the mystery nurturing their curiosity instead of deterring it.
## III. The Inescapable Requiem
But irrespective of their battles and sworn oaths to the grim-faced stranger, Death came. It arrived in the form of a lullaby, whispered through the cracks of the tavern room where she was confined, singing her to the eternal sleep. 
Life abandoned the woman’s body, leaving it cold and rigid. Grief etched the features of her supposed life-partner like a sculptor meticulously carving his masterpiece. He paid his respects, the raw anguish bleeding from his eyes forming an invisible bond with the corpse in the bed before he vanished, allowing the woman’s body to be buried in the sacred grounds of St. Paul’s Cemetery.
In his abrupt departure, the husband bequeathed unpaid dues and an elusive riddle that has become the subject of countless whispers and horrified fascination till today.
## IV. The Never-Departed Spirit
After her enigmatic death and the departure of the man shrouded in shadows, Gadsby’s Tavern started experiencing ghostly events. The staff and guests frequently spoke of a beautiful apparition, a specter of a woman in nineteenth-century fashion, haunting the very room that witnessed her cruel demise. 
Her existence in the spectral world has been peaceful. Almost meditative. She seemed to be forever searching – for an object, or perhaps a person she was eternally waiting for. The sightings of this “Female Stranger” keep alive the memory of that twilight when the strange couple arrived in the ancient walls of the tavern.
## V. Her Legacy: A Tale of Eternal Waiting
Post her demise, and even centuries later, the Female Stranger has become an inseparable part of Gadsby’s Tavern’s lore. She remains a constant, an echo of the past that lurks in the shrouded corners of the establishment, narrating a spectral tale that continues to serve generous helpings of shivers among the staff and visitors.
Now, each whispered story, every claimed sighting, and the unsettling tranquility of the room she once breathed in, root the legend of the Female Stranger even deeper into the foundations of the tavern. The mystery surrounding her identity and the strange happenings at the tavern continue to mystify, leaving the legend of Gadsby’s Tavern and its ghostly patron as enduring as the edifice itself. Her spirit seems destined to roam the halls, trapped in her eternal quest — a tale that continues to shroud Gadsby’s Tavern in an enigma as beguiling as the evening shadows. So marks the tale of the Female Stranger and the everlasting enigma of her ghostly haunting.