They don't like fire. I'd say lights and activity will deter a lot of the creatures out there, but some of them aren't so easy to spook. I went on a mission a while ago and ran into some lizard folk. They're smart, but if they can communicate with us, they haven't shown any interest. They could probably disable the electronics and the alarms we put out there.

[He's not sure what to think of them. Are the city's inhabitants the intruders? They haven't tried to disturb anything, but he is still figuring the local relationships out. It's so rare to see any groups.]

And you already saw there are some big ones that tend to push over anything in their way. We could use some heavy equipment. I know that'll take time, but there's not much else that'll keep them out.