The Transformation of Philip Jettan by Georgette Heyer

In February came Mr. Bancroft to Paris. Philip's departure from Little Fittledean had been closely followed by his own, for he found that Cleone no longer smiled. Also, the spice of wooing her was gone when there was no jealous lover to flout. He waited until his affaire had blown over, and then he went back to London. Now, very blasé, he came to Paris in search of new pastimes.

It was not long before he met Philip. And the manner of the meeting was delightfully sensational. Under the auspices of his friend, M. de Chambert, he attended a rout at the hotel of the Duchesse de Maugry. He was presented to one Mademoiselle de Chaucheron, a sprightly little lady, with roguish black eyes. Mr. Bancroft was content to form one of the small court she held. Several old acquaintances he met, for he was not unknown in Paris.