The Slender Man
A mod that adds Slenderman and the Slender Forest where you can find him and his Notes/Pages.
When you right-click the notes you will get Items as a reward but at what cost?

World Compatibility between versions 1.3 and 1.4 is not Supported!

I just wanna make this very clear, you cannot load a world that used version 1.3 while running 1.4 in your Mods folder.
If you do try and upgrade to version 1.4, Minecraft will attempt to load the world but it will fail and say 'This world contains invalid or corrupted save data' But don't worry!
It's not corrupted forever and your world can still be Joined if you just downgrade your version back to 1.3 and then join the world

Important Information about The Mod (Outdated, only for Versions 1.3 and below)

The mod is not designed to follow the original games and the lore
This means that there are an "infinite" amount of Notes/Pages in the Slender Forest that will drop loot when right-clicked or mined to Reward the player for adventuring into the Slender Forest. Another difference is that Slenderman can now be stopped/delayed when he hunts the player, all you have to do is hit him or deal damage to him in any way, and when you do that he will disappear and stop hunting you

A Note

Slenderman

Questions & Answers about the Mod.

Q: Can I use your mod for a modpack?
A: Yes, you may add this mod to any Modpack. Both for Personal and Commercial use.

Q: Can I run away from Slenderman?
A: Yes, but I would highly suggest just hitting him to make him disappear for 15 seconds, it's way more effective.

Q: I found a bug, how do I report it?
A: Post a comment about the bug in the 'Comments' Tab

Q: I have a suggestion for the mod
A: Post a comment about your suggestion in the 'Comments' Tab

Q: Have you played the Original Slenderman Mods?
A: Nope, but I might play them, considering how much inspiration and good ideas there are in the original mods

Q: I can't find the Slender Forest
A: Slender Forest spawns in 'Plains' biomes as a structure. They spawn in a 64-96 chunk grid so you might have to adventure far out from your spawnpoint. This was done to avoid constantly finding and making them rare, like an Illager Mansion for example. I would suggest using mods like 'Structure Compass' to easily find one or do the "/locate" command

Q: My question isn't answered here
A: Post your question in the 'Comments' Tab and I'll reply to it answering your question

Videos

(Version 1.3)
Played by Calvin on YouTube in his "From The Fog" Series
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The Slenderman