In Diablo 4 Season 10: Season of the Infernal Reign, players continue to uncover the legacy of Bartuc and Horazon - two of Sanctuary's most infamous sorcerers. Once you've reached Reputation Rank 6, you'll unlock the Blood on Parchment quest, one of the most pivotal storylines in the season. This quest bridges the gap between Fell Visions and the next major chapter, Sword of Horazon. It's packed with lore revelations, dangerous boss fights, and essential progress toward uncovering Horazon's fabled blade.

Before starting, make sure you've completed all previous seasonal quests and reached the required reputation threshold. If you're short on progression, using Diablo IV Items can significantly speed up gearing and ensure you're ready for this fight-heavy quest.

How to Start Blood on Parchment in Diablo 4 Season 10

1. The quest begins in Caldeum, specifically at the Imperial Library - one of the city's most recognizable hubs.

2. Upon arrival, speak with Shyan, your recurring guide through the Horazon storyline. She's standing near the entrance, ready to brief you on the next objective: finding a mage named Alafar, who may hold crucial knowledge about the Sword of Horazon's resting place.

3. Shyan directs you south to Alafar's Sanctum, located just beyond the library's borders. Mount up and follow your map's marker.

Quest Objectives for Blood on Parchment

·Speak with Shyan at the Imperial Library

·Travel to Alafar's Sanctum

·Speak with Shyan

·Find Alafar's Study

·Slay the Fell Council demons

·Investigate the book

These objectives will carry you through several phases of exploration and combat inside Alafar's domain.

Exploring Alafar's Sanctum

Once inside Alafar's Sanctum, your goal is to locate Alafar's Study. Expect narrow hallways, cultist ambushes, and traps scattered throughout. Take your time clearing out enemies to avoid being overwhelmed, especially if you're running on higher World Tiers.

Boss Battle: Maffer the Cruel and Geleb the Flame

Eventually, you'll reach a grand chamber where two familiar faces from the Infernal Hordes await: Maffer the Cruel and Geleb the Flame. Previously encountered as individual bosses in Den of Iniquity and Infernal Hordes events, they now join forces in one brutal fight.

This encounter marks the highlight of Blood on Parchment. To progress, you must slay the Fell Council demons, but doing so won't be easy.

·Maffer the Cruel uses a teleport strike and devastating melee attacks. He frequently vanishes and reappears behind you, delivering heavy damage if you're not alert.

·Geleb the Flame conjures massive fire AoE zones that expand over time. He also hurls trios of fireballs that leave lingering burning zones upon impact.

When both are active, their overlapping abilities create a chaotic battlefield filled with fire, arcane blasts, and tracking projectiles.

If you're struggling to stay alive, consider upgrading your gear with better elemental resistances. Potions and elixirs that boost Fire Resistance or Movement Speed are particularly valuable for this fight.

Strategy tip:

Focus on Geleb first. Use mobility skills - like Teleport, Dash, or Blood Mist - to reposition quickly. Once Geleb falls, Maffer becomes much easier to handle.

Investigating the Book

1. After defeating Maffer and Geleb, the room falls eerily silent. You'll discover that Alafar has already been slain, likely by the Fell Council, before your arrival. His corpse lies near a large tome - the Blood on Parchment itself.

2. Interact with the Book to trigger the final cinematic and uncover its secrets. Shyan translates fragments of Alafar's research, revealing the sword's final resting place: Mount Civo. This discovery directly sets up the next seasonal quest, Sword of Horazon.

However, before you can proceed, you'll need to reach Tier 8 Seasonal Reputation. If you're not there yet, continue farming Infernal activities, Nightmare Dungeons, or seasonal events.

Rewards and Next Steps

Completing Blood on Parchment grants:

·Seasonal experience and Infernal Favor

·High-tier crafting materials

·A powerful piece of rare or legendary gear

·Unlocking progress toward Sword of Horazon

Once this quest is complete and you've ranked up your reputation, you can immediately begin the next chapter in Caldeum - one that delves deeper into Horazon's legacy and Bartuc's demonic return.

Final Tips for Blood on Parchment

·Recommended Level: 70+ or higher World Tier 3

·Best Builds: High burst or AoE builds (Lightning Sorcerer, Minion Necromancer, Whirlwind Barbarian)

·Preparation: Stock up on health potions and consider buying Diablo 4 materials to craft resistance elixirs

·Strategy: Focus fire on Geleb, stay mobile, and clear adds to reduce chaos during the dual boss fight

Blood on Parchment serves as a critical lore bridge in Diablo 4 Season 10, revealing the truth behind Horazon's blade and Bartuc's fall into madness. The quest's tight mix of exploration, lore, and frantic combat makes it one of the standout moments of the Infernal Reign storyline. With Mt. Civo now on your map, the path to the Sword of Horazon - and the final confrontation with Bartuc, Lord of Chaos - lies just ahead.