The way to remove the Whispering Mask in Baldur's Gate 3 is to remove it when you defeat the hag. If you wear the mask for a long time, you will be controlled by the mask and attack the player.
Answer: Defeat the hag to remove it
First of all, players need to defeat the hag when they are in front of it, and then they can remove the Whispering Mask.
After obtaining the Whispering Mask, players can wear it and enter the corridor door.
When wearing it, be careful not to wear it for too long. If you wear it for a long time, you will be controlled by the mask and attack your teammates.
Of course, you can also use protective good and evil spell skills to prevent being controlled by the mask.
Where is the Whispering Mask?