When five year old Klarissa is diagnosed with selective mutism everyone is shocked because they do not know what that means. Selective mutism is where a person decides not to talk to certain people. This is not called being shy, but it is a bigger meaning. Klarissa is now in eighth grade and she develops enemies and friends all without talking. This will be a diary of her life each day she decides to write in the diary which is named Tina.