The Half Blooded Siblings:Hades And The Underworld Book 4 (No Parts)

Zoe and Leo go fight each other but what caused this.A spell.A potion.A GOD.They figure out who did this.But I'm not telling you.YOU have to find out what will happen next... So,I want to tell you something about this book.It is different from the others.All parts are put into one book.If you don't like this idea then go and tell me.Good Job Guys!