• The titles consistently captivate readers with their intriguing narratives.
• The genre of children’s detective fiction enjoys significant popularity in contemporary times.
• The narrative of the book delves into the mystical realm, infusing the story with an aura of enigma and delivering an enthralling and suspenseful experience.

Zhenya Kysil is an ordinary schoolboy living in Kyiv, leading a life characterized by its uneventfulness—devoid of adventures, dangers, or startling surprises. That is until a sudden and inexplicable event occurs: his closest friend, Vitasyk, vanishes without a trace. The school community erupts into chaos, and the prospect of remaining idle while a dear friend may be facing peril becomes unbearable for Zhenya.

Fueled by a relentless determination to rescue Vytasik, Zhenya embarks on his own personal investigation, enlisting the guidance of genuine police captains. However, as the mystery unfolds, it becomes clear that Vitasyk’s disappearance is not the result of a kidnapping. Instead, he has seemingly vanished by succumbing to the enticing lure
of a mysterious voice that beckoned him to become his classmate, Vitasyk Hratsiansky.

In his new guise, Vitasyk unwittingly becomes a witness to a crime, and it is through their combined efforts that he and Zhenya manage to expose the criminals responsible for these misdeeds.

Vsevolod Nestayko is a Ukrainian writer who is considered a classic of modern children's literature. The future writer was born in Berdychiv on January 30, 1930.

When little Vsevolod was three years old, his father died and he was forced to move to Kyiv with his mother. He finished school in Kyiv. In his childhood and for a long time afterwards, he dreamed of becoming a ship captain and going on long voyages and seeing with his own eyes the distant lands that his favorite author Jules Verne wrote about, but due to problems with his eyesight, he could not realize his dream, so he entered the Taras Shevchenko University of Kyiv, Faculty of Philology. After graduation, he worked as an editor for many Ukrainian magazines. In 1956, he began to run the Veselka children's publishing house. All his life, the writer lived and worked in Kyiv. Vsevolod died on August 16, 2014.

All of Vsevolod Nestaiko's works are filled with instructive stories, interesting characters who always find themselves in comical situations, and the author's trademark humor. The author began publishing his first stories for children in the magazines Barvinok and Pioneriya. The first book was published in 1956 and was called Shurka and Shurko. Vsevolod Nestayko has been actively writing for over 50 years, and during this time he has published over 40 books. "Toreadors from Vasyukivka" is the author's most popular book, which brought him the greatest recognition. The story was made into a movie of the same name, which won many international competitions and received awards. Also very popular are such books as: "Cosmonauts from Our House", "Incredible Detectives", a series of books "Amazing Adventures in the Forest School", "The Mysterious Voice Behind" and many others.

Vsevolod Nestayko has received many literary awards, including the Lesya Ukrainka Prize, the Mykola Trublaine Prize, and the Oleksandr Kopylenko Prize. In 2010, the author was also awarded the Order of Yaroslav the Wise, and in 2012 he received the Golden Writer of Ukraine award.

Vsevolod Nestayko's works have been translated into more than 20 languages, and this is not surprising, because his books help to educate children in the sense of justice, honesty, kindness, friendship and at the same time condemn negative qualities such as self-interest, selfishness and others. That is why Vsevolod Nestayko's books have long been very popular among children of all ages.