|digital background by Selkis|
A so far unpublished text, or possibly so, by Torquato Tasso can be found in this book that has just been published in Italy: Liber Angelorum, "The Book of Angels," edited by Dr. Grazia Cavasino. It transcribes/translates a mysterious manuscript discovered in 2010, that includes a set of miscellaneous texts mostly from the Middle Ages to the 17th century, about apparitions of angels and holistic worldviews.
Il "Liber Angelorum." Testo e contesto dell'inedito di Valambros, ed. Grazia Cavasino, YouCanPrint, 2016, pages 112 with illustrations, euros 12, can be ordered here or here.