Oh you poor fool...the walls and doors tend to shift Down There, and unseemly things have a tendency of tasting before they let you know of their presence.
GPS won’t help you, I’m afraid. The Zombies have done something to cloak any effort of tracking folks who wander alone.
We’ve tried to use string, fur balls and other things less tasteful as tracking trails, but the efforts have been wasted.
Please! Don’t go down there unguided!!!
Oh, don’t worry about me Monkey Face, if I get lost it’ll be fine.
I have experience with zombies and things attacking without warning or reason.
I was married once.