This imagination of pleasant detail and accessory, which delights us by the intimacy into which we are brought with the artist's innermost conception, develops into what, among the masters of the fifteenth century, I should call the imagination of the fairy tale. A small number of scriptural and legendary stories lend themselves quite particularly to the development of such beautiful accessory, which soon becomes the paramount interest, and vests the whole with a totally new character: a romantic, childish charm, the charm of the improbable taken for granted, of the freedom to invent whatever one would like to see but cannot, the charm of the fairy story. From this unconscious altering of the value of certain Scripture tales, arises a romantic treatment which is naturally applied to all other stories, legends of saints, biographical accounts, Decameronian tales (Mr. Leyland once possessed some Botticellian illustrations of the tale of Nastagio degli Onesti, the hero of Dryden's "Theodore and Honoria," a sort of pendant to the Griseldis attributed to Pinturicchio), and mythological episodes: a new kind of invention, based upon a desire to please, and as different from the invention of the Giottesques as the Arabian Nights are different from Homer.