In Kingdom Come: Deliverance 2, the “Opus Magnum” side quest presents players with a blend of intrigue, strategy, and adventure. This guide provides a comprehensive walkthrough to help you navigate and complete the quest successfully.
Table of Contents
Initiating the Opus Magnum Quest
To embark on the “Opus Magnum” quest, players must first complete the “Forbidden Fruit” side quest, which is part of Miller Kreyzl’s storyline. Afterward, Miller Kreyzl, located at the Lower Semine Mill in the Trosky region, will offer the “Opus Magnum” quest.
Objectives Overview
In this quest, Miller Kreyzl plans a heist during a wedding at Trosky Castle. Your role involves gathering specific items and recruiting a companion to ensure the plan’s success. The primary objectives include:
- Recruit a Companion: Find a suitable individual to accompany you to the wedding.
- Acquire a Dress: Obtain appropriate attire for your companion.
- Secure Perfume: Find a fragrance to complete the ensemble.
- Attend the Wedding: Use the gathered items and your companion to infiltrate the event.
- Retrieve the Book: Locate and secure the alchemical tome known as the “Opus Magnum.”
Step-by-Step Walkthrough
1. Recruiting a Companion
Begin by identifying a suitable companion to accompany you to the wedding. Engage with various NPCs in the vicinity to find someone willing to assist in the heist. Ensure that your chosen companion can convincingly blend into the wedding setting.

2. Acquiring a Dress
Once you’ve secured a companion, the next task is to find appropriate attire. Visit Tailor Bartoshek’s residence, located east of the pillory. You have two options:
- Purchase: Buy a Tyrol brocade cotehardie for approximately 270 groschen. Haggling can reduce the price.
- Steal: Wait until nightfall, pick the lock (noting it’s a hard difficulty), and take the dress from the counter.
Additionally, consider upgrading Henry’s attire to boost charisma, enhancing interactions during the quest.
3. Securing Perfume
With the dress in hand, the next item is perfume. Explore local merchants or specific quest-related locations to obtain a suitable fragrance that complements the ensemble.
4. Attending the Wedding
Equipped with the necessary items and accompanied by your partner, proceed to Trosky Castle to attend the wedding. Maintain a low profile to avoid arousing suspicion. Engage in conversations and gather information that may assist in the heist.
5. Retrieving the Opus Magnum
The final objective is to locate the “Opus Magnum” alchemical book. Seek out Scribe Erazim, situated near the top of the southwestern tower in the castle. Engage him in dialogue to gather clues about the book’s whereabouts.
Upon investigation, you’ll discover that the book fell into a latrine, passed through a sewer pipe, and landed outside the castle grounds near Nikvard’s deceased body. Retrieve the book from this location.
Conclusion
Completing the “Opus Magnum” quest in Kingdom Come: Deliverance 2 requires careful planning, strategic interactions, and thorough exploration. By following this guide, players can successfully navigate the challenges presented in this multifaceted side quest, enriching their gaming experience.
For a visual walkthrough, you might find the following video helpful:
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