The story was published by Mijat Stojanović in his book Folk Tales and Poems, published in 1867. Along with it, Stojanović noted: "In Samac from the merchant Marko from Kobaš, grad. krajina year 1835."
The book is written in the form of questions and answers. The questions are simple, and there are always two answers: the first is short and intended for the youngest curious, while the second is more extensive and detailed, with color illustrations.
The girl ˝RU˝ doesn't have a postman owl, so she sends her letters to Harry Potter by sea waves, spring waves, morning dawn, seagulls, falcons, and most often by swallows!