Witchaven/Level 8

From the start, go forward into the long hallway and take the first passage on the right; the bars descend when you approach them. There are two side chambers off of this room, the upstairs one contains a brass key. Get it and find the brass key door right on the other side of the main hall. Inside you'll find a Willow Wisp and a Glass Skull. The Willow Wisp can level drain you, so you might want to use your bow for a slow but safe kill. If you do get drained, the Glass Skull gives you a free level up so it's not a huge deal.

Follow the main corridor until you reach the broken bridge, then drop into the water and head west, being careful of the Willow Wisps. You'll find a rock staircase leading up, which will bring you to the ivory key and then to the pentagram area.

Once you have the pentagram, drop into the water again and head to the east side. The ominous pit you find in the chamber you'll reach looks like a deathtrap, but it actually teleports you next to the statue in the eastern rooms. From there, it's a brief trip to get back to the main corridor and the exit area in the southwest.

Bonus Areas

 * You can fly through the angled windows in the eastern area. One has a Hero Time helmet, the other a bow.