Bewitched

Start by heading southeast of Wesberie. You'll find a house where you can hear a boy crying for help, claiming a witch has locked him up.

Go around to the back of the house. Look for a wooden breakable wall and shoot it down.

Now, position yourself to shoot the lock on the front door. You can do this through the back door located at the top of the stairs inside the house.

Once the lock is shot, head back to the front of the house and use the now unlocked front door to enter.

Inside, you'll need to find the key to the room where the boy is trapped. The key near the back door is NOT for that room.

Climb up into the attic area to your left.

In the attic, climb over the wooden wall on the left side to drop down into the room behind the barred door.

The key you need is hidden beneath a movable shelf in this room.

With the key in hand, unlock the door trapping the child.

After freeing the boy, you'll learn he was actually locked in by his mother for misbehaving, not by a witch. This completes the mystery.