Throne of Glass #0 Prequel - The Assassin's Blade by Sarah J. Maas
I am obsessed with Sarah J. Maas' writing! Every book of hers becomes one of my favorite reads! This one is a prequel to The Throne Of Glass series and consists of five stories following Celaena back in the days where she was an assassin in the keep along with Arobynn, Sam and more amazing characters!