The Benefactor, or Quiribirini (The Illustrious Fairies, 1710)

A king has married a princess whose health is so delicate that she cannot have children. He is advised by a man versed in the occult sciences who makes a hot water bottle for the queen. The queen soon has a perfect son. The young prince's parents suddenly die, and the neighboring king declares war on him. But the young king wins the war and wisely reigns.
But this prince, whose passion is hunting, has no attraction for the ladies. One day in the forest, he encounters "a very bad-looking man" chasing a snake. The snake seeks protection behind the king, who defends it and puts the man to flight (this is the image).
The snake then leads the king to the king's side. The snake then leads the king to "a young man who appeared to be asleep", who wakes up and the snake drops dead. The man reveals that he is the one who restored his mother's health and enabled her to give birth to him. The late king had nicknamed him "the Benefactor". Pursued by this malevolent individual, he had passed into the snake's body to escape more easily.
The young king asks Bienfaisant to teach him his secret, but Bienfaisant first leads him into his lair. Inside is a succession of magnificent cabinets, where Bienfaisant makes all the court ladies appear, then all the foreign princesses, in magnificent clothes. But the young king is indifferent, until the appearance of a princess of marvelous beauty
. Bienfaisant then tells him that this princess is a queen besieged by a dreadful king whom she refuses to marry, that he is helping this queen to resist with his art, and that the man who was pursuing him is none other than the magician father of this wicked suitor. Bienfaisant then reveals his secret: by uttering "Quiribirini", he will have the power to transform himself into any animal he wishes. All he has to do is shoot a magic bow, which will cause the dead animal to fall at his feet. He can then leave his body and enter the animal's.
Benevolent and the prince change into birds and fly to the beleaguered queen's kingdom. There, Benevolent enters the body of a scorpion and fatally stings the "tyrant". Meanwhile, the young king has sent a galant naval expedition, which is received in triumph in the queen's harbor. The queen marries the king and they return to the king's states.
Meanwhile, the tyrant's magician father, killed by Bienfaisant, is plotting his revenge. He sends to the king's court his nephew, who is bezu and wicked. The nephew becomes his favorite and confidant, except for the secret of Bienfaisant's lair. The favorite feigns distress at this lack of confidence and falls ill. The defeated king shows him his secret, enters before him in the body of a deer, and the favorite takes advantage of this to enter the king's body.
However, when he appears before the Queen, she feels an immediate aversion (under the effect of Bienfasant's art). Nevertheless, the false king sets about methodically killing all the hinds in the forest. But the king changes from a doe to a fish and then to a parrot, flies to the court and tells the Queen and a court lord of his adventure. They summon the false king, suffocate him and the real king is able to pass from the parrot's body back into his kingly body. Bienfaisant then joins the king and queen and "was for nearly a century the most accredited favorite the Princes ever had."