The Black Book from 5 A

Fifth grader Artem Bylinkin could not have imagined how the jokes about the straight-A student Venya Sundukov would come back to haunt him. Now, spiders are following Artem everywhere, and he is aging with each passing day. Is Venya a sorcerer? Artem and his friends must steal the mysterious black book from the honor student and break the curse before it's too late.