The Holy Grail of Eris, Vol. 11 (manga)

Connie learns from San and Eularia the shocking truth behind Prince Ulysses's kidnapping-that it's all an excuse for Faris to wage war against Adelbide. What's more, the same plan had been carried out ten years ago, and it was foiled only due to Scarlett Castiel's execution. But how? Randolph, who comes to the same conclusion, makes his way to the Castiel estate to question the duke. Will the truth behind Scarlett's demise be revealed at last...?