In Kingdom Come: Deliverance 2, players can craft a plague mask by completing the Prevention quest located in Mysteria Ecclesiae. This involves navigating the lockdown at Sedletz Monastery.
Materials Collection
Players need to gather specific herbs: eight mint, three chamomile, one sage, and one valerian near Herbalist Joachim's hut in the southeast Woodland Garden. To avoid guards and punishment, it is advised to save often and use non-private areas or return to the infirmary if spotted.
- The Essential Oil recipe is found in a library book in the southwest corner.
- Find Pig Skin and Flax Rope at a building site near the monastery chapel.
- Materials are essential for completing the mask and progressing the quest.
Crafting the Mask
Once the materials are collected, players need to brew the Essential Oil. This is done at an alchemy station using the collected herbs, following a specific order and process to complete the mixture.
After preparing the oil, players can assemble the plague mask at the infirmary table, marking the completion of the Prevention quest and enabling further exploration in the Sedletz crypt.



