Simon looked around the fort and asked Sniper. "You know of this place ?"

http://zim.wikia.com/wiki/Nightmare_Realm?file=Zim-16.jpg
Zim fell and looked around as he was in what looked like his base. "This looks like Zim's base but isn't." He looked around and froze. "No... No..no not again!" He began blocking the doors and windows. "The HALLOWEENIES! They're coming !"
Manchester rose a eyebrow at Zim but sensed something coming at the house. "Something is coming."