There are many tasks in Diablo 4, and players can get many Diablo 4 items by completing these tasks. The Cost of Knowledge is the eighth mission in Act 1 of Diablo 4's main story questline. It follows the quest Storming the Gates and involves searching for Vhenard in the Mourning Shore. The following article will give you a detailed introduction to how to complete "The Cost of Knowledge" in Diablo 4.

To complete The Cost of Knowledge quest in Diablo 4, follow these steps:

1. Start from the bottom corner of the area to get a head start in taking down the Hell Spawn enemies that appear. They are your primary targets, so try to isolate and defeat them. Clearing out the other demons in the area will also help significantly.

2. Proceed through the dungeon, continuing from where you left off in the previous quest, Storming the Gates. Your main aim is to search for Vhenard and Lilith with Neyrelle.

3. During the quest, you will encounter Neyrelle and her mother, Vhenard, in a cutscene. It is revealed that Lilith used Vhenard to help open the bridge and left her behind. Neyrelle, wanting to end Lilith's mission, fights with Vhenard against Neyrelle's intentions.

4. Defeat Vhenard to complete the quest. After defeating her, she will drop various rewards for you to pick up.

Following these steps will allow you to complete The Cost of Knowledge quest in Diablo 4 and progress further in the game's storyline. Good luck on your adventure in Sanctuary!

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