Just as Iska and Unit 907 finally rescue Princess Sisbell, the Lord Yunmelngen abducts
Rin and orders them back to the Imperial capital. Despite the obvious danger, Iska and
company hurry to the heart of the Empire to both free their comrade and discover what
transpired there a century ago during the creation of witches. But neither of these
tasks will be easy, for the Eight Great Apostles are determined to end Iska’s pursuit of
the truth. Meanwhile, disaster brews in the Nebulis Sovereignty!