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Craft Fever Tonic in Kingdom Come 2

Author : Jason Update : Sep 16,2025

Craft Fever Tonic in Kingdom Come 2

Hans Calls for Aid in Trosky Castle Quest - Crafting Fever Tonic Guide

Henry's assistance is required once more during the "For Whom the Bell Tolls" main quest at Trosky Castle. Your first challenge involves alchemy - specifically creating Fever Tonic to save a life. Here's your complete brewing guide for Kingdom Come: Deliverance 2.

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Table of contents

  • Locating the Fever Tonic Recipe
  • Brewing the Perfect Fever Tonic

Locating the Fever Tonic Recipe

Trosky Castle kitchen chamberlain in distress
Screenshot credit: The Escapist

The Fever Tonic formula awaits in Trosky Castle's Surgeon Workshop. You have two primary approaches:

  1. Sneak into the workshop stealthily
  2. Persuade the chamberlain by offering to create digestive medicine

If subterfuge isn't your style, complete initial "For Whom the Bell Tolls" objectives by delivering the horseshoe first. Then consult Cook Fanka at the forge, offering to help with her locked chest. This grants kitchen access where you'll find the afflicted chamberlain. Passing persuasion checks about his condition earns workshop entry. Presenting both digestive and fever remedies later unlocks Thomas's location.

Surgeon
Screenshot credit: The Escapist

Failed persuasion? Alternative route: pilfer food from the kitchen, then navigate to the courtyard's opposite stairs. Bribe the guard with stolen provisions to access the secondary kitchen. Sneak upstairs to discover the surgeon's journal containing the vital recipe.

Brewing the Perfect Fever Tonic

Step-by-step tonic brewing process
Screenshot credit: The Escapist

The workshop station comes pre-stocked with necessary herbs. Reference the Fever Tonicum page and follow these steps:

  1. Add wine to cauldron
  2. Measure 3 portions of Feverfew
  3. Boil mixture for two sandglass turns
  4. Grind Elderberry Leaves thoroughly
  5. Incorporate powdered leaves
  6. Add 2 measures of Ginger
  7. Retrieve phial from station shelf
  8. Complete distillation process

Don't stress over initial failures - ample ingredients remain in the room's chest. Previous alchemy experience should make this manageable.

With tonic prepared, locate Thomas either through the chamberlain (if trusted) or via the noble's kitchen route. Completing Adele's dialogue concludes this quest segment.