The most beautiful had been Tristan’s mother, the sixteen-year-old Delphine. Even Étienne’s staunchest supporters had been horrified when he had made this exquisite child his fourth wife and within a few weeks impregnated her.

Nemesis moved swiftly. A proud, delighted Étienne was busy sketching his newborn baby, Tristan, when he heard that his fourth and favourite son, Laurent, a young army officer, had been blown up in Chad. Laurent had always been a rebel, and rumours persisted that he had been taken out by his own side. Too crazed with grief even to call for an inquiry, Étienne promptly lost interest in baby Tristan, and hardly seemed to notice when, a few days later, Tristan’s young mother committed suicide. She had been suffering from postnatal depression. It was left to Étienne’s sister, Hortense, a rusty old battleaxe, to organize Tristan’s christening, at which, as one of Delphine’s last wishes, Rannaldini was a godfather.

Étienne’s indifference persisted. Tristan was the only one of his children he pointedly ignored and never praised. The boy had been brought up with the rest of Étienne’s gilded pack in Paris or at the château in the Tarn, but he was always the wistful calf which grazes away from the herd, longing for yet shying away from love.

Which was why his godfather was so important to Tristan and why on that wintry November evening in 1977 he could hardly contain his excitement as, in his first dark suit, his gold hair slicked down with water, he peered out at the galloping black clouds and frenziedly thrashing trees of the Bois de Boulogne for a first glimpse of Rannaldini’s Mercedes.

Although Rannaldini got a Machiavellian kick from singling out Tristan for attention, knowing it irritated the hell out of Étienne, he was genuinely attached to the boy.