A sewer is a creepy place by itself, but what if I tell you that something is living there, and it's bigger then rats. It is your golden ticket - you thought, but when you went down into this smelly place - you've met pure evil. You've got there accidentally, you were a hobo who's happened to see a truck dropped 8 bags of gold into the sewer. Now you need to find the gold no matter what.
Credits: GAB_THE_CRAFTER
How to install maps:
Download .mcworld file below
Open file using any file manager to import it into Minecraft PE
Open Minecraft Pocket Edition and look for the map among your worlds