"Perfect." Jim said. Having learned some basic fortification before, he was confident that they can transform an area into their own stronghold. 
[i] It's too big, though. We're gonna have to find a small place to settle in inside, then expand from there. [/i]
"You're right, the upper floors would be better for us to stay in, provided that we have an escape route, and we don't lure zombies on the way up. Any ideas?" Jim asked, already thinking of ways to create barricades and fortify from the very limited resources that were probably inside the offices.