This map is a Minecraft creation of Lavender Town from Pokemon.
It has similar things in it from Pokemon CreepyPastas, though.

You MUST use the Minecraft 1.6 Snapshot 13w17a or higher. (Hardened Clay Blocks)
You can find Mojang's development launcher on their official page here for the snapshot:
http://mojang.com/2013/04/1-5-2-pre-release-and-13w17a-snapshot-oh-my/
(It's near the bottom)

This map is not very complex, however there's a short adventure for you to go through inside the tower. Things for you to use have been hidden in the houses, although easy to find. If you think there's only things in the houses, then you're wrong. Search everywhere. There are few things in the tower that should help you fight the bosses - the final boss being harder. Skeletons are your enemies, about all of them having the same gear, except for one regular archer. There is one skeleton in the 4th room that has better armor, but the same tool in its hand. Two skeletons are holding levers. I'm not sure if they will actually drop or not when killed, but if not, tell me and I'll fix it.

I would tell you what the bosses are, but it's a surprise. It's not very challenging, unless you're not good at fighting monsters or edited monsters. You are unable to go outside the town, the paths being blocked, and there are no axes/hatchets in any chest. (You could if you NBT edited the world's save file, though, changing the gamemode)

MCForum Post

Map Features:
No mods required!
The short adventure.
"People" that can say one phrase only.
2 Bosses.
Le Small Creepy Town of Lavender.

Additional Notes

Pokemon CreepyPasta Lavender Town