Crime in the Green Notebook. Chemical Crime: A Flip Book

It seems you are interested in detectives? Then we have great news!

By reading these mysterious stories, you will become the partner of the main characters, face enigmas, codes, and help find solutions to difficult tasks in order to catch two dangerous criminals hiding on the pages of the book.

On a rainy day, Roma Zephyrov, a student in the 3rd 'B' class of school No. 7, experienced a robbery at home. Right under the nose of the schoolboy, his... you won't believe it, math homework disappeared! To find the thief and correct his undeserved F, he will be helped by his friend Mashka, who knows how to take fingerprints and interrogate suspects. Roma and Mashka didn't enjoy their solved case for long, as the next day a sly criminal stole ten boxes of chalk from the chemistry classroom at school number 7. Even the attentive principal, who always keeps an eye on order, didn't notice the thief! Everyone fell under suspicion: the PE teacher, the labor teacher, the math teacher, the cook, and even the chemistry teacher. The principal would have searched for the thief for a long time, but Roma and Masha found a clever way to catch the criminal.