# Berserk Volume 21
## Part I: The Tower of Conviction
- **Introduction to the Tower**
- Description of the Tower as a fortress of the Holy See.
- Mozgus, the Inquisitor, and his role in the Holy See's campaign against heretics.
- Casca’s imprisonment within the Tower, awaiting execution.
- **Guts' Journey to the Tower**
- Guts’ emotional turmoil over losing Casca again.
- His determination to rescue her despite overwhelming odds.
- Gathering allies and preparing for battle.
- **Mozgus' Campaign**
- Overview of Mozgus' methods of torture and punishment.
- The atmosphere of fear and despair among prisoners.
- Mozgus' belief in divine justice and his twisted piety.
## Part II: The Mark of Sacrifice
- **Casca's Condition**
- The significance of the Mark of Sacrifice on Casca.
- Her mental state and vulnerability due to past trauma.
- Dark powers drawn by the Mark intensifying around the Tower.
- **Supernatural Forces Awaken**
- Manifestation of demonic entities attracted by Casca’s Mark.
- Chaos erupting within the Tower as darkness spreads.
- Prisoners succumbing to madness or becoming possessed.
- **Guts vs. Demons**
- Guts confronting waves of supernatural enemies.
- Use of the Dragonslayer and Berserker Armor in combat.
- Moments of reflection on his own humanity amidst carnage.
## Part III: The Battle with Mozgus
- **Mozgus Revealed**
- Mozgus’ true nature unveiled—more than human, imbued with unholy power.
- His fanaticism and willingness to sacrifice himself for his cause.
- A clash of ideologies: Guts’ survival instinct versus Mozgus’ blind faith.
- **The Climactic Fight**
- Intense battle between Guts and Mozgus.
- Mozgus’ brutal tactics and superhuman abilities.
- Guts pushing beyond his limits, risking life and sanity.
- **Resolution of the Conflict**
- Defeating Mozgus but at great personal cost.
- Destruction of the Tower as it collapses under the weight of unleashed evil.
- Reflections on the futility and horror of religious extremism.
## Part IV: Aftermath
- **Saving Casca**
- Guts reaching Casca amidst the chaos.
- Struggles to protect her from both physical and metaphysical threats.
- Temporary relief as they escape the crumbling Tower.
- **New Threats Emerge**
- Lingering presence of dark forces even after Mozgus’ defeat.
- Foreshadowing greater dangers tied to the Mark of Sacrifice.
- Guts realizing that their journey is far from over.
- **Character Development**
- Guts’ resolve strengthened despite growing burdens.
- Deepening bonds between Guts and his companions.
- Exploration of themes like redemption, sacrifice, and hope in a cruel world.
## Themes and Symbolism
- **Religious Hypocrisy**
- Critique of authoritarian religion through Mozgus’ character.
- Contrasting genuine faith with corrupt institutions.
- **Humanity vs. Monstrosity**
- Questioning what makes someone human in a world filled with monsters.
- Guts’ struggle to retain his humanity while fighting unimaginable horrors.
- **Love and Redemption**
- Guts’ love for Casca driving him forward.
- Hope for redemption despite overwhelming darkness.