Petrademone: Book 1. Book of doors. Kastany M.

Thirteen -year -old Frida, who has lost his parents, comes to Petrademon farm to uncle and aunt. Here, in silence, surrounded by loving people, her wounds begin to be healed. Frida finds new friends - the Tommy and Jerriko brothers, and then Kuzina Miriam joins the company. But incredible events await all of them: something mysterious and terrible is going on in Petrademon. First, dogs disappear somewhere around the district, and when the guys try to understand who is behind this, they find a mysterious book. Where will their “Book of Doors” lead? For secondary and senior school age.