The Holy Grail of Eris, Vol. 6 (manga)

On the way back from visiting the Bronson Company, Connie is nearly kidnapped but saved in the nick of time by Aldous. Realizing just how much danger shes in, she tries to keep Kate at a distancebut its all for naught when Kate is taken and a threatening blackmail letter arrives! Connie leaps into action to save her friend, but shes not the only one on the move, as Amelia Hobbes and the merchant Vado both have their own plans