I finally found it. The secret portal to the Haunted Dimension. I received a hint that criminals were going to open this portal, and I had to stop them. This portal could somehow camouflage though, so when people went through it, it looked like they went through the wall. (2 HOURS LATER) The criminals were finally here, and I was ready to stop them. I grabbed my gun and blocked the 5 criminals from opening the portal and leaving out the ghosts. We fought for HOURS until I threw the criminals into the Haunted Dimension, never to be seen again.