Okay so you've read the first book and waited for 'Golden Son' do not read until you've reread 'Red Rising;. The book skips forward two years so be prepared. 
 Darrow accepted the officer from Nero Au Augustus the man who killed his wife and Jackal's father. These two years have made a lot of changes to our young Darrow now twenty years old he's as comfortable as he can be in the golden society. He's accepted his lot in the world and worries about the Bellona's taking revenge for him killing their brother/son/cousin. 
 Eo is now held up as Persephone, a revolutionary figure and you find out dark secrets from the howler Sevro and his father. You see a new side to all the characters and you find new love for the characters be they new or old. 
 You may think the book will be like the first and be repetitive but it isn't its amazing as you'll ignore the world as you immerse yourself into the society and forget the world around you. You'll misread characters and hate them while they do the best for everyone and maybe the hate you feel for some characters will diminish. The first book spoke of how the academy was a game and now even real life is treaed as a game by the ruling elite of the society. 
 What will Darrrow do whilst he holds his secret and battles to do what he promised to his love Eo.