Hellbound, Playthrough, Level "Dead Forest", Pt. 1

Okay, okay.. got stuck in the Dead Forest level with no idea on how to find the yellow key. I activated some type of pedestal and heard some noise of things moving around but I just don't know what. I could use some help with this if anyone knows. Otherwise, take a look at the game in action. It has a few hiccups because the machine I am running it on is a little low on the spec side and I have some of the graphics items ticked up..