This guide will show you how to complete the Cause for Concern - Farewell, a side quest in Horizon Zero Dawn. Read on to learn the quest objectives, strategies, location, and rewards for the Cause for Concern - Farewell side quest.

Cause for Concern - Farewell Quest Information

General Info

Quest Location

Map Location

World Location

You can only start this quest after clearing all the Bandit Camps in the game (DLC not included). Talk to him near the Gatelands Camp to begin this quest.

Cause for Concern - Farewell Walkthrough

How to Complete

	Objectives
1	Talk to Nil Talk to Nil near the Gatelands Camp to start this quest. He will invite you to go to the Spearshafts.
2	Go to the Spearshafts Head to the Spearshafts and look for Nil atop the mountain. He will ask you to fight to death, but you have the choice to do it or not.
3	Refuse to Fight Nil Refusing the duel will leave Nil disappointed, but alive. This will be one way to end of the quest.
	Fight Nil You can fight Nil if you choose to accept the duel. The quest will end after talking to him before he dies.

Regardless of your choice on this quest you can still get the All Allies Joined Trophy.

Tips and Strategies

Aim for the Head

You can deal more damage against Nil if you aim for his head. He is a bit more agile than normal humans, so getting the Concentration skill will help you accurately land headshots.

The Double Shot skill can also help you inflict more damage on him, and it will work well with the Concentration skill.

Get Resources First

If you decide to accept Nil's duel to the death, you better get the resources first around the area. You can find Medicinal Herbs, crafting materials, and some potions in the supply crate nearby.

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