The Abyss was a hole made by lots of NPCS in the Great Zombie Invasion of Minecraft. Legend says many NPCS died filling lots of TNT and it reaches up to bedrock, where the zombies were thrown to death. After that, the zombies took revenge and now use it to throw the NPC prisoners to death.
The Abyss was first mentioned by Crafter when the gang wanted a place to destroy the Ender Chest with Herobrine's XP. Crafter stated that there was a Two-Sword Pass, where Smithy of the Two Swords first used his dual-sword move to throw many of the zombies down. The group travel to the Abyss, where Xa-Tul and his army waited for them, but the group escapes into the Nether. The group never reached the Abyss.
- Gameknight999 vs. Herobrine (First Appearance)