The Crime in the Green Notebook. Chemical Crime (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 challenging tasks in order to catch two... dangerous criminals hiding on the pages of the book.
On a rainy day, Roma Zefirov, a student of the 3rd "B" grade at school #7, experienced a burglary at home. Right under the boy's nose, his... believe it or not, math homework disappeared! To find the thief and correct the undeserved failing grade, he will be assisted by his friend Mashka, who knows how to lift fingerprints and interrogate suspects.
Roma and Mashka didn't enjoy their solved case for long, as the very next day, at school number 7, a cunning criminal stole ten boxes of chalk from the chemistry classroom. Even the vigilant principal, who always keeps an eye on order, did not notice the thief! Everyone came under suspicion: the physical education teacher, the labor education teacher, the math teacher, the cook, and even the chemistry teacher. The principal would have searched a long time for the thief, but Roma and Masha found a clever way to catch the criminal.
Children's detective stories are a special subgenre that differs from "adult" detective stories by a simpler plot, vivid characters, and an atmosphere of magic. In children's detective stories, child heroes investigate mysterious incidents, search for lost items, and solve mysteries. Reading books is an important stage in a child's development. It helps them learn new things, develop imagination, and broaden horizons. Children's detective stories are an excellent choice for independent reading. They are captivating, dynamic, and contain elements of adventure.