For the moment, this is my favourite novel ! Rezo is back as well as Zel and this is amazing. We meet Sylphiel who is an interesting character. I've read the book really quick because I couldn't stop until to know the end.
This third novel clearly is a loner in this series. Lots of stuff will never been found again with the exception of Lina, Gourry, Zelgadis and Sylphiel. There are even spells that only exist in this novel and will never been found again. Consequently, if you knew that the main duo is Lina and Gourry, that Rezo was the boss of the 1st novel and that Zelgadis is a friend of Lina and Gourry, you can read this book as a stand alone with all good and bad points.
In the beginning of the book, it was discovered that a bounty had been placed on Lina, Gourry and Zelgadis' head as if they were bandits. That was the reason why countless justice groups or other people were gathering to attack Lina and Gourry. They quickly decided to go where this bounty comes from to stop this nonsense : Sairaag.
This novel if quite fun during the beginning but will become darker as the story is revealed. The existence itself of the evil character is even so sad and he is pitiful... How much suffering !