The detectives from Class 4 “A” can do everything and know the answer to any question!
Who is the “geranium kidnapper”? What does the tuft of fur on the floor “say”? Where did thirty computer mice all at once disappear to? Who stole the inspiration—and where does it come from? Why did two Seryozhas vanish? Where did a ninja come from at school?
There are so many questions in the world! But for each of them there will definitely be an answer. Because real professionals from the fourth grade are on the case…