thanks much for that, also the gate was unlocked and i was able to get the zombie on the surface but he doesn't interact with annie it shows a green icon then a small yellow icon. is this for future builds or did i miss another clue? lol, amazing game keep up the good work.
so I guess I'm just that dumb but I checked every inch of the bottom in 14 and the only secret entrance I find is after you get the chest and it brings you back before the wall that opens in the time limit. I still cant find the key or switch that opens up the zombie girl on the surface.