The fourth book in the “Moscow Forest” series. The Forbidden Forest with its frightening secrets? Terletskoe Urochishche, the patrimony of the leshaks of the entire Moscow Forest? Krylatsky hills, where real heffalumps graze on the slopes? This time, the reader will get to know the new inhabitants of the Moscow Forest - together with the already familiar heroes, they will have to face a new, terrible threat that hangs over each of the inhabitants of the Moscow Forest. But no matter what happens, it is important not to forget about the main commandment: There is enough forest for everyone.