Berserk Volume 21 is a paperback manga by Kentaro Miura, originally released in 2008. The story follows Guts, the Black Swordsman, as he confronts Mozgus, the Inquisitor of the Holy See. Mozgus has captured Guts' former lover, Casca, and intends to burn her at the stake. Casca's Mark of Sacrifice attracts dark powers to the Tower of Conviction, and Guts must use all his strength to defeat Mozgus and save Casca from the demonic forces. This volume is part of the acclaimed Berserk series and is published by Dark Horse Comics. It features 248 illustrated pages.