There are currently five Throne of Glass novellas - The Assassin and the Pirate Lord, The Assassin and the Healer, The Assassin and the Desert, The Assassin and the Underworld, and The Assassin and the Empire. They are all prequels to the international bestseller Throne of Glass and all have been published by Bloomsbury. Four of the novellas are currently avaliable to buy on E-Book, while the fifth book - The Assassin and the Healer - is apart of a special edition of Crown of Midnight that is avaliable in Paperback in the UK.
All five novellas are to be bound up and published as one physical book named The Assassin's Blade, which will be avaliable to buy in Spring 2014 (March 2014 for UK & May 2014 for USA). The novellas should be read after book 3 and, to be safe, even book 4, on account of all the spoilers in them.
The Assassin and the Pirate Lord
Sam and Celaena journey to Skull's Bay to meet with the pirate lord Rolfe, where an unexpected turn of events leads to Celaena and Sam racing against the clock, and pirates, to pull off a risky stunt that could very well end their lives.
The Assassin and the Healer
After being punished by Arobynn Celaena is journeying to the Red Desert to train with the Silent Assassins. On her way she stops in Innish and meets Yrene Towers, a woman who works at the local inn & tavern. Whether these two were brought together by fate, or by the will of the gods themselves, we shall never know.
The Assassin and the Desert
Celaena arrives in the Red Desert to train with the Silent Assassins in an effort to gain the blessing of the Mute Master. While there, Celaena faces adventure and betrayal the likes of which Will change our assassin, for better or worse, only time will tell.
The Assassin and the Underworld
Celaena is welcomed back to Rifthold by Arobynn. She is assigned a contract to eliminate a man named Doneval who she believes to be a slave trader. However, she was deceived by Arobynn.
The Assassin and the Empire
Sam and Celaena struggle to escape the looming shadow of Arobynn. Sam accepts a high paying hire to eliminate the Crime Lord Ioan Jayne and his second. The hire was a setup and a betrayal.
The Assassin's Blade
The Assassin's Blade is a book containing all five novellas. It was published by Bloomsbury on May 2014 for the UK (May 2014 for the US). The book will also contains many extras about the Throne of Glass series. Even though the five novellas are separate they form a cohesive and informative prequel to Throne of Glass