Treachery is a Side Mission in King Arthur: Knight's Tale. The Treachery mission is part of Act 1 and it is located at Dungeons of Camelot. Players are tasked to defeat the traitors. This mission requires the Heroes Sir Kay and Sir Mordred to be included in the party to begin. Completing this mission unlocks the next Side Mission Old Monastery, as well as Events such as What should happen to Sir Kay? and A Rowdy Feast. For a list of all available missions, click here.

General Information

  • Recommended Level: 3
  • Bosses: n/a


Treachery Map

[map coming soon]


NPCs in the Area



  • n/a



Building Resources

  • +300

Recruitable Heroes





  • Notes go here

Full Treachery Walkthrough

Side Mission Introduction

"Sir Kay uncovered the roorts of a potential rebellion in Camelot. I gave him permission to investigate this matter further. I can't accompany him this time, but I can give him some knights to help him out. Hopefully it will make him stop from complaining about not having enough to do around here. "

Side Mission Completed Description

"The rebellion is over. Sir Kay must be judged later. "

Treachery Side Mission Objectives

  • Sir Kay must survive
  • Defeat the traitors
  • Meet Sir Lanval


Events that occur during the Side Mission, Treachery.

Event Title: Sir Lanval's Fate

  • Choice 1: tyrant morality personality king arthur knights tale wiki guide 136px (+1 Tyrant) Kill Sir Lanval along with all his men.
  • Choice 2: rightul morality personality king arthur knights tale wiki guide 136px (+1 Rightful) Kill Sir Lanval but spare his men and let them serve Camelot.
  • Choice 3: Give Sir Lanval a chance for a spot at The Round Table.


Defeat the traitors

  • Sir Kay must survive

This mission begins with a dialogue that will immediately end in battle. Keep an eye on the Crossbowman, and be careful about being surrounded. Keep your archer away from the enemies to avoid the range penalty. Since there are geometric walls around this area, you can use this to your advantage by remaining at the chokepoint and allowing the enemies to come to you individually. Clear the Battle to proceed.

When you have cleared the battle, head north (left) to reach the prison. Here you will meet some NPCs in the area. Other than some short dialogue, they won't give you anything, but you can loot the to cells in the surrounding area. At the center cell, you will also have the option to heal a wounded guard by giving up a potion. Doing so will give you the option to have him join you. 

Head back to the courtyard and this time use the east exit to the guard room and loot the chest.  Once you reach the round table, they will investigate the letter and Declaration of loyalty. Contniue exploring the area, you might come across a highwayman. He will let you pass and give you the location of Sir Lanval, and you will have the option to continue or attack. After this sequence, you will find there is a campire in the area to rest.

Meet Sir Lanval

Head southeast of the map. You will reach the crypts. If you continue down the corridor, you will encounter a ghost that will tell you not to disturb the noble dead. There will also be a suspicious chest in the area that you will have the option to open. Opening the chest will initiate a battle with an Other's Guardian along with some other types of enemies.

Make your way back up and head to the middle of the map where you'll see a round table in the middle, a dialogue will occur once you find the Declaration of Loyalty letter that was signed by both Sir Lanval and Sir Kay. Sir Kay then explains that it was a mishap of judgement and he was wrong, he promises that he will explain everything afterwards.

Make your way to the southern room. Once you head down to the south courtyard, a battle will begin. This time you must protect the servant from the attackers. Clear the battle the same way as the first courtyard battle. Once it is cleared, head west. This is the location of your main objective. Continue down the corridors. you will encounter a shrine and a chest on the way. Follow the corridor down to the last room. This is where you will encounter Sir Lanval. You will then have the option to duel or battle him. If choosing a duel, you may choose which hero you wish to duel with him. At the end of the battle, you will also have the option to give Sir Lanval a chance at the Round Table and join your Heroes, kill him and his men, or kill him and take his men. This mission can be completed following this decision. Make sure to loot the hall before exiting the area. 


Treachery Map

Map Coming Soon





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