It is a simple enough system. You read off the alphabet (ESA version, not ABC) until, with a blink of my eye, I stop you at the letter to be noted. The maneuver is repeated for the letters that follow, so that fairly soon you have a whole word, and then fragments of more or less intelligible sentences. That, at least, is the theory. In reality, all does not go well for some visitors. Because of nervousness, impatience, or obtuseness, performances vary in the handling of the code (which is what we call this method of transcribing my thoughts). Crossword fans and Scrabble players have a head start. Girls manage better than boys. By dint of practice, some of them know the code by heart and no longer even turn to our special notebook—the one containing the order of the letters and in which all my words are set down like the Delphic oracle's.

 Indeed, I wonder what conclusions anthropologists of the year 3000 will reach if they ever chance to leaf through these notebooks, where haphazardly scribbled remarks like "The physical therapist is pregnant," "Mainly on the legs," "Arthur Rimbaud," and "The French team played like pigs" are interspersed with unintelligible gibberish, misspelled words, lost letters, omitted syllables.

Nervous visitors come most quickly to grief. They reel off the alphabet tonelessly, at top speed, jotting down letters almost at random; and then, seeing the meaningless result, exclaim, "I'm an idiot!" But in the final analysis, their anxiety gives me a chance to rest, for they take charge of the whole conversation, providing both questions and answers, and I am spared the task of holding up my end. Reticent people are much more difficult. If I ask them, "How are you?" they answer, "Fine," immediately putting the ball back in my court. With some, the alphabet becomes an artillery barrage, and I need to have two or three questions ready in advance in order not to be swamped. Meticulous people never go wrong: they scrupulously note down each letter and never seek to unravel the mystery of a sentence before it is complete. Nor would they dream of completing a single word for you. Unwilling to chance the smallest error, they will never take it upon themselves to provide the "room" that follows "mush," the "ic" that follows "atom," or the "nable" without which neither "intermi" nor "abomi" can exist. Such scrupulousness makes for laborious progress, but at least you avoid the misunderstandings in which impulsive visitors bog down when they neglect to verify their intuitions. Yet I understood the poetry of such mind games one day when, attempting to ask for my glasses (lunettes), I was asked what I wanted to do with the moon (lune).

Not many places in France still pay homage to Empress Eugénie. In the main hall of the Naval Hospital, a vast echoing space in which gurneys and wheelchairs can advance five abreast, a stained-glass window depicts the wife of Napoléon III, the hospital's patroness. The two chief curiosities of this mini-museum are a white marble bust, which restores her to the glory of her youth, and the letter in which the deputy stationmaster of Berck's railroad depot describes to the editor of the Correspondant Maritime the brief imperial visit of May 4, 1864. Through his words we clearly see the special train pull in carrying the troupe of young ladies of Eugénie's retinue, the joyful procession through the town, and the introduction of the hospital's little patients (Berck began life as a children's hospital) to their illustrious protectress. For a while I seized every chance I had to pay my respects to these relics.

A score of times I read the railwayman's account. I mingled with the chattering flock of ladies-in-waiting, and whenever Eugénie progressed from one ward to another, I followed her hat with its yellow ribbons, her silk parasol, and the scent of her passage, imbued with the eau de cologne of the court perfumer. On one particularly windy day, I even dared to draw near and bury my face in the folds of her white gauzy dress with its broad satin stripes. It was as sweet as whipped cream, as cool as the morning dew. She did not send me away. She ran her fingers through my hair and said gently, "There, there, my child, you must be very patient," in a Spanish accent very like the neurologist's. She was no longer the empress of the French but a compassionate divinity in the manner of Saint Rita, patroness of lost causes.

And then one afternoon as I confided my woes to her likeness, an unknown face interposed itself between us. Reflected in the glass I saw the head of a man who seemed to have emerged from a vat of formaldehyde. His mouth was twisted, his nose damaged, his hair tousled, his gaze full of fear. One eye was sewn shut, the other goggled like the doomed eye of Cain. For a moment I stared at that dilated pupil, before I realized it was only mine.

Whereupon a strange euphoria came over me. Not only was I exiled, paralyzed, mute, half deaf, deprived of all pleasures, and reduced to the existence of a jellyfish, but I was also horrible to behold. There comes a time when the heaping up of calamities brings on uncontrollable nervous laughter—when, after a final blow from fate, we decide to treat it all as a joke. My jovial cackling at first disconcerted Eugénie, until she herself was infected by my mirth. We laughed until we cried. The municipal band then struck up a waltz, and I was so merry that I would willingly have risen and invited Eugénie to dance, had such a move been fitting. We would have whirled around miles of floor. Ever since then, whenever I go through the main hall, I detect a hint of amusement in the empress's smile.

The Naval Hospital must be a striking sight to the noisy light aircraft that buzz across the Berck shoreline at an altitude of three hundred feet. With its massive, overelaborate silhouette and the high redbrick walls typical of northern France, it seems to have foundered on the sands between the town and the gray waters of the Channel. On the facade of its most imposing annex, as on the front of schools and public baths in the French capital, are the words "City of Paris." Created during the Second Empire for sick children in need of a climate healthier than that of Paris's hospitals, the annex has retained its extraterritorial status.

For while cold reality places us in the Pas de Calais region, as far as the medical bureaucracy is concerned we are still on the banks of the Seine.

Linked by endless corridors, the hospital buildings form an authentic maze, and one routinely runs into patients from Ménard hopelessly lost in Sorrel—wards named after eminent surgeons. Like children who have wandered from their mothers, these unfortunates mutter "I'm lost!" as they wobble about on their crutches. Being what the stretcher bearers call a "Sorrel," I am more or less at home here, but the same cannot be said of newcomers. I could try to signal with my eyes whenever my wheelchair is pushed in the wrong direction, but I have taken to looking stonily ahead. There is always the chance that we will stumble upon some unknown corner of the hospital, see new faces, or catch a whiff of cooking as we pass. It was in this way that I came upon the lighthouse, on one of my very first expeditions in my wheelchair, shortly after swimming up from the mists of coma. As we emerged from an elevator on the wrong floor, I saw it: tall, robust, and reassuring, in red and white stripes that reminded me of a rugby shirt. I placed myself at once under the protection of this brotherly symbol, guardian not just of sailors but of the sick—those castaways on the shores of loneliness.

The lighthouse and I remain in constant touch, and I often call on it by having myself wheeled to Cinecittà, a region essential to my imaginary geography of the hospital. Cinecittà is the perpetually deserted terrace of Sorrel ward. Facing south, its vast balconies open onto a landscape heavy with the poetic and slightly offbeat charm of a movie set. The suburbs of Berck look like a model-train layout. A handful of buildings at the foot of the sand dunes gives the illusion of a Western ghost town. As for the sea, it foams such an incandescent white that it might be the product of the special-effects department.