MONACO - Prince Rainier III, who reshaped this Riviera backwater into a sparkling hideout for the rich, is 81 and ailing. And some wonder whether after his reign ends, medieval-modern Monaco's fate will be to melt away into neighboring France.
Such talk, heresy to most Monegasques, is uttered only in hushed tones, and no crisis is necessarily imminent. The line of succession, on which Monaco's independence hangs, is assured through Albert, Rainier's popular 46-year-old bachelor son. And if his shy, retiring nature drives him to abdicate, sisters Caroline or Stephanie can step in.
But the world is changing fast around Monaco. Its French neighbors now belong to a 25-nation European Union bent on eradicating old anomalies and harmonizing its tax laws to undercut fiscal havens like Monaco. To survive, the tiny principality will likely need a tough-minded ruler.
For many close to the inner circle, such as Nadia Lacoste, Albert is plainly up to the job. Lacoste was palace spokeswoman in the heady days of Princess Grace, the actor Grace Kelly, who married Rainier in 1956 and was killed in a car crash in 1982.
"Albert will be a wonderful prince," she said. "On his own, he'll show a dynamic personality and effective leadership."
Albert himself outlined his dilemma in a rare interview with the Paris daily Le Monde: "If I say something against my father, people think I'm impatient to replace him. If I say nothing, I'm seen as an imbecile."
Still, other insiders expect Albert to withdraw from public life. None agree to be quoted by name, fearing regal wrath. Despite its velvet trimmings and elected legislature, they say, Monaco is run by fiat as it has been for nine centuries.
Rainier was hospitalized twice this year. For three weeks, he was treated for "general fatigue." In March, he spent 12 more days in the hospital for what the palace said were heart problems.
In Paris, authorities refuse comment on such a touchy issue as the status of Monaco. If assured of anonymity, however, some wonder aloud how much longer the principality can survive.
European Union officials are equally tight lipped about the fate of Monaco and other quirks of European history and geography such as San Marino in Italy, the Channel islands between England and France and Andorra in the Pyrenees. But in private conversations, Monaco's future is a question.
Although no bigger than Central Park in New York, Monaco has all the trappings of an independent state - a seat at the United Nations, a passport and postage stamps and a Legislative Council that drafts bills for the prince to sign.
But the French shadow is everywhere. Monaco's language is French, the currency was French francs and is now the euro and visitors can breeze down the Riviera highway and into the principality without even realizing it.
The prince chooses his prime minister from among three French officials selected in Paris.
In 1962, President Charles de Gaulle resolved an economic dispute with a bald show of force. Rainier backed down in a face-saving compromise, but no one missed the broader message - Monaco exists at France's pleasure.
In 2000, three French auditors declared that Monaco was too lenient on money launderers. Now, quietly but increasingly, people speculate that a future French government will be tempted to exert sovereignty in the absence of a strong leader.
Whatever happens, Rainier's shoes will be hard to fill.
The prince has spent half a century remaking Monaco. His marriage to Kelly at the peak of her Hollywood fame (High Noon, Rear Window, Dial M for Murder) brought Monaco into the realm of fairy tale. After her death, Rainier channeled his grief into more public works.
Monaco's population of 32,000 includes only 7,080 citizens, but it has grown by 20 percent on land reclaimed from the Mediterranean.
A $328-million floating breakwater expanded the harbor capacity by a third to accommodate luxury cruise ships.
After high-rise apartments climbed up the mountainside, builders dug deep for underground office space and yet more parking for Ferraris and Lamborghinis.
Old Monaco perches on a looming rock, with the prince's storybook palace, the cathedral where Grace's remains are entombed, and a few narrow cobbled streets of government ministries and tourist shops.
Below is Monte Carlo and a small port choked with the giant white yachts of European industry kings and Middle Eastern potentates.
An exotic botanical garden, vibrant bougainvillea and lush flower beds splash the concrete with color. The fanciest designer names label downtown shops. Banks are ubiquitous; litter is not.
But with all of its transformation, the principality has yet to shake the epithet from pre-World War II days: A sunny place for shady people.
Monaco offers access to the enlarged European Union with few of its legal constraints. It levies no income tax and depends heavily on sales taxes, though the French and Americans are subject to their home country's taxes. Monte Carlo's fabled gaming tables are still awash in money.
The principality says little about its finances, but official U.S. estimates put the gross domestic product near $900-million, making the per capita income of more than $27,000 among the world's highest.
Private international watchdog groups have faulted its bank secrecy and EU authorities have pressed it to be more transparent. In December, the Organization for Economic Cooperation and Development named only five countries as uncooperative tax havens: Andorra, Liberia, Liechtenstein, the Marshall Islands and Monaco.
Ariane Picco-Margossian, head of Monaco's special unit to quash financial fraud, recently said 110 cases of money laundering were investigated in 2003, and 19 were prosecuted. After rigorous questioning, she estimated the total under suspicion at about $120-million over four years.
But reporters pressing for details - such as whether Russian criminal money was involved - were answered with a smile, a shrug or silence.
"I love Monaco because it's not really part of the world," photographer Helmut Newton said just before his death in December. "It's a happy corner at the edge of everything."
Although he often traveled to his native Berlin, Newton made his headquarters here, along with Swedish tennis legend Bjorn Borg and a range of international notables.
If the ornate old casino and Cafe de Paris slot machines bring in only 4 percent of Monaco's wealth, they set the tone. All night, high-rollers in black tie mingle with sloppily dressed tour-bus crowds.
Elaborate remodeling has revived the grandeur of the Hotel Metropole, a Belle Epoque landmark that Rainier refused to let Aristotle Onassis demolish when the Greek shipping magnate was a major investor in Monaco.
Still, the principality's character has changed dramatically over the years.
"Visitors came for an entire season," said Jacques Ferreyrolles, 83, whose family has run the Balmoral Hotel since 1896. "They had style, a sense of class. Now they just come and go in a few days."