Crime in the Green Notebook. Chemical Crime (Flip Book)

It seems you are interested in detective stories? Then we have great news!
By reading these mysterious stories, you will become the partner of the main characters, encounter puzzles, ciphers, and help find solutions to difficult tasks to catch two dangerous criminals hiding within the pages of the book.
On a rainy day, Roma Zefirov, a student of the 3rd "B" class of school No. 7, experienced a robbery at his home. Right under the student's nose, his... you won't believe it, math homework disappeared! To find the thief and rectify the unjustified failing grade, he will be assisted by his friend Masha, who knows how to take fingerprints and interrogate suspects.
Roma and Masha did not celebrate solving their case for long, because the next day at school number 7, a cunning criminal stole ten boxes of chalk from the chemistry classroom. Even the attentive principal, who always keeps an eye on order, did not notice the thief! Suspicion fell on everyone: the physical education teacher, the woodworking 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.
Children's detective stories are a special subgenre that differs from 'adult' detectives with a simpler plot, vibrant characters, and an atmosphere of magic. In children's detective stories, child heroes investigate mysterious incidents, search for lost items, and unravel secrets. Reading books is an important stage in a child's development. It helps them learn new things, develop imagination, and broaden their horizons. Children's detective stories are an excellent choice for independent reading. They are engaging, dynamic, and contain elements of adventure.