The Demon Sword Master of Excalibur Academy, Vol. 10 (light novel)

-Ah, you-ve come to uphold your promise, Leonis.- The Queen of Shadows- plan has been thwarted, but that hardly means the end of the Void threat or the mysteries surrounding it. While Riselia and the others head for the capital of the Rognas Kingdom, ancient enemies prowl its ruins, and the return of the eighth Dark Lord looms. What awaits in the remains from a thousand years ago, and what are the Voids and their masters truly after?