EN: A book that can be obtained from Alchemist Matild. According to the instructions written in the book, go find the secret keeper tree located in the Cruma Marshlands and obtain the secret book.
RU: Книга Алхимика Матильды. Следуя ее указаниям, найдите в Топях Крумы Дерево Тайник и заберите оттуда спрятанную книгу.