Finding the Royal Treasury Key in Kingdom Come: Deliverance 2's Oratores quest can be tricky. This guide provides a clear walkthrough.
The Oratores quest, a lengthy main quest, requires obtaining the Royal Treasury Key after assisting Vavak. The key's location is a crucial step.
To acquire the key, locate the outhouse in Vavak's backyard (see map below).
Inside the outhouse, examine the toilet. An "Investigate" prompt will appear. Selecting it will reveal the key hidden within. Note: this will dirty Henry; wash up afterward to avoid dialogue issues with NPCs.
With the key in hand, continue the quest by speaking with Zizka and Rosa, then explore the underground passages with Samuel. The quest is far from over, so prepare for a substantial challenge.
This concludes the guide on obtaining the Royal Treasury Key. For more Kingdom Come: Deliverance 2 tips and strategies, including Lower Semine woodcutters' treasure and optimal perk choices, check out The Escapist.