again, spoiler alert if you haven't watched the lockdown episode.

as mentioned in my previous post, during the lockdown in the hatch, a black light revealed a map on one of the steel doors. at first glance, you think it's a map of the hatch itself, but after carefully looking at it again (thanks to a screen capture someone e-mailed me), it looks like a map of the island itself!

take a closer look for yourself (click on the image to see larger version):