[1] The dating of the opera comes from a manuscript (now at Arquivo Nacional in Rio de Janeiro)[2] of the complete score, having "Firenze, 1902–1903" on the title page.

[3] Another manuscript contains a vocal score arranged by the composer, it is at the library of Escola de Comunicações a Artes.

[3] There are only three singing roles:[1][3] Choruses and dancers include fairies, satyrs, bacchantes, vampires, soldiers and sailors.

[1][3] The orchestra consists of:[3] The action takes place in a grotto near the isle of Cyprus, in the kingdom of the fairy Ulina.

At the end he defends the fairy from the soldiers, who try to hurt her, without being able to prevent her death, but just in time to declare his love.