During the whole of the past Carnival and the latter months of the previous year there had been living in Ravenna a young girl,—­an artist from Venice, who had come to Ravenna with a commission given her by a travelling Englishman to make copies of some of the more remarkable of the very extraordinary and unique series of mosaics which exist in the old imperial city.  She had brought with her a letter of introduction from her employer to the Marchese Lamberto,—­ a circumstance which had led to a degree of intimacy between the Marchesino Ludovico and the extremely attractive young artist, which threatened to stand more or less in the way of the match which had been arranged by the high-contracting parties between Ludovico and the Lady Violante, the great niece of the Cardinal.  The girl’s name was Paolina Foscarelli.

It is probable that in due time and season the reader may become better acquainted with Paolina.  But at present there is no need of troubling him with more particulars respecting her than the above, save to mention that, having industriously and successfully completed the greater portion of her task in the churches within the city, she had determined to make her first visit to the strange old Basilica of St. Apollinare in Classe, on that same Ash Wednesday morning.  She did not purpose beginning her task there on that day; but intended merely to reconnoitre the ground, look to the needful preparations that had been made for her work, and ascertain how far the spot was within her powers of walking.

Paolina, too, had felt that the morning of Ash Wednesday was a favourable time for the first experiment of an undertaking that a little alarmed her.  For she also had calculated that on such a morning she should be little likely to meet anybody.  It was just about six o’clock when Paolina started on her proposed walk; and she passed through the Porta Nuova, therefore, a little more than half-an-hour before Ludovico and his companion passed, travelling in the same direction.

The road, which it was necessary for her to follow in order to reach St. Apollinare in Classe, is the same for the whole of the distance between the city and the ancient church as that which Ludovico and Bianca would follow to reach the celebrated pine forest.  The soil on which the forest stands is composed of the accumulation of sand which the rivers—­mainly the Po—­have brought from distant mountains, and deposited in the bed of the Adriatic since the old church was built “in Classe,”—­where the fleet once used to be moored.  The building thus stands nearly at the edge of the forest, hardly more than a stone’s throw from the furthest advanced sentinels of the wood.  The road coming out from the city by the Porta Nuova, on its way to the little town of Cervia, a few miles to the southward, traverses ground once thickly covered with palaces, streets, and churches, now open fields,—­and passes by the western front and doorway of the almost deserted old Basilica, a little before it reaches the turning off towards the left, which enters the forest.