At school, everything is ready for the celebration of October 28th. However, Nikos cannot understand why the word "NO," so simple, is so important.

Until the moment when the school bullies try to intimidate his group. That’s when he discovers that when you say no to injustice, you gain great strength, no matter how small you are.

Series: Anna and Nikos are two siblings who narrate their adventures from their school everyday life. Through their stories, they help young readers find solutions to their worries and parents approach their children's concerns with empathy.

Historical reference & Educational activities at the end of the book!