Grimoires´╝ÜGrimoires are the catalyst that The Seven use to transform into their powered up forms. Using top secret technology that they pilfered from Sumeragi, these Grimoires were created using data from Glaives they usurped combined with the power of The Muse.Unlike the Glaives, which were used by Sumeragi to control the adepts that wielded them, the Grimoires are purely used to strengthen their wielders. The adepts who wield these Grimoires can use their abilities without transforming into their more powerful forms, which means the powers they wield post-transformation are greater than that of any former Sumeragi-controlled adept.