"That massive, Corrupted Tree is not natural. It's as if The Great Evil's energy weapon is somehow capable of pulling things from Hell directly into this dimension. That explains why we haven't seen any survivors. If we don't stop him soon, he'll eventually attack Avalon, too. Let's see if we can find any other areas affected by the weapon. I've put up rings around the area to help guide you. Your compass will also point to where you should go."
As you leave Nichol's house, equip your Rocket Boots and wings and fly to the arrow your compass is pointing towards. After you pass through, move on to the next one. You only need to pass through each ring once. If you ever lose track of which ring you're on, your compass will guide you to it. Once you have passed through every ring, return to /warp chapter2.