A Rank 7 monster created when Bone Monkey, Bone Wolf, Bone Bear and Bone Bird – the other Undead made at the same time as Bone Man – were combined. His name, ‘Knochen’ – which means ‘bone’ in German – was given to him afterwards.

It is loyal to Vandalieu, and its favorite game is to have Vandalieu throw a frisbee for it to catch and then throw it back for him to go and fetch.

Knochen became a Rank 8 Union of Bones before the defense of Talosheim. Its appearance is that of a combination of countless bones, a beast the size of a mansion. Knochen is a powerful monster; attacks that would effectively break the skulls and backbones of normal skeletons are ineffective on it as it replaces its broken bones with the Bone Form Manipulation skill.

It is noteworthy that the bones of Earth Dragons and Rock Dragons have been absorbed by Knochen’s body, while normal Unions of Bones wouldn’t have these. Its defense is as solid as steel.

It is a monster that the Adventurers’ Guild would designate as a disaster; if it were discovered, the Guild would send out compulsory requests and form an extermination squad. The Adventurers’ Guild itself isn’t aware of this, and nobody else knows, either. (Knochen’s very existence is rare, so it is not as well-known as Goblin Kings.)

It frequently flies in the skies above Talosheim, but apparently Vandalieu is riding inside around one in ten times.

It is made from Bone Bird, Bone Wolf, Bone Monkey and Bone Bear, who were made for the same reason as Bone Man, so it is truly happy about Darcia’s resurrection.

In a way, its purpose in life has been fulfilled, so it is now focusing on nothing but gathering more bones and increasing its defensive capability. Its next objective is to become an enormous, airborne, mobile palace.


Immediately after clearing the Trial of Zakkart, Knochen went from being a Rank 10 Grand Bone Fort to a Rank 11 Bone Palace, becoming even more enormous. By adding countless Demon Bones to its body inside the Trial of Zakkart, it has become not only larger, but sturdier and more sinister-looking as well.

Current Stats:

  • Name: Knochen
  • Rank: 10
  • Race: Grand Bone Fort
  • Level: 48
  • Passive skills:
    • Dark Vision
    • Monstrous Strength: Level 1 (Awakened from Superhuman Strength!)
    • Spirit Form: Level 7 (LEVEL UP!)
    • Bone Form Manipulation: Level 8 (LEVEL UP!)
    • Physical Resistance: Level 8 (LEVEL UP!)
    • Absorption Healing (Bone): Level 8 (LEVEL UP!)
    • Fortress Form: Level 4 (LEVEL UP!)
    • Fission: Level 6 (LEVEL UP!)
    • Strengthened Attribute Values: Fortress Form: Level 4 (NEW!)
  • Active skills:
    • Silent Steps: Level 2
    • Breath (Poison): Level 7 (LEVEL UP!)
    • High-speed Flight: Level 6 (LEVEL UP!)
    • Long-distance Control: Level 9 (LEVEL UP!)
    • Projectile Fire: Level 8 (LEVEL UP!)
    • Parallel Thought Processing: Level 4 (NEW!)

Previews Stats:

  • Rank: 9
  • Race: Bone Fort
  • Level: 0
  • Passive skills:
    • Dark Vision
    • Superhuman Strength: Level 10 (LEVEL UP!)
    • Spirit Form: Level 6 (LEVEL UP!)
    • Bone Form Manipulation: Level 7 (LEVEL UP!)
    • Physical Resistance: Level 6 (LEVEL UP!)
    • Absorption Healing (Bone): Level 7 (LEVEL UP!)
    • Fortress Form: Level 1 (NEW!)
    • Fission: Level 1 (NEW!)
  • Active skills:
    • Silent Steps: Level 2
    • Breath (Poison): Level 6 (LEVEL UP!)
    • High-speed Flight: Level 5 (LEVEL UP!)
    • Long-distance Control: Level 8 (LEVEL UP!)
    • Projectile Fire: Level 6 (LEVEL UP!)


  • Rank: 8
  • Race: Union of Bones
  • Level: 27
  • Passive skills:
    • Dark Vision
    • Superhuman Strength: Level 8
    • Spirit Form: Level 5
    • Bone Form Manipulation: Level 5
    • Physical Resistance: Level 4
    • Absorption Healing (Bone): Level 4
  • Active skills:
    • Silent Steps: Level 2
    • Breath (Poison): Level 5
    • High-speed Flight: Level 5
    • Long-distance Control: Level 4
    • Projectile Fire: Level 4


  • Bone Bird
  • Rank: 4
  • Race: Specter Bird
  • Level: 37
  • Passive skills:
    • Dark Vision
    • Spirit Form: Level 3 (LEVEL UP!)
    • Superhuman Strength: Level 2
  • Active skills:
    • Silent Steps: Level 1
    • Swift Flight: Level 2 (LEVEL UP!)
    • Projectile Fire: Level 2 (NEW!)