This achievement is obtained by successfully burying 5 skeletons.
Master Undertaker Achievement
Bury 25 skeletons.
To successfully bury a skeleton, follow these steps:
- Go to the surface of any world.
- Find a flat spot that is at least 4 blocks wide.
- Dig a hole exactly one block deep and two blocks wide in the center of the flat area.
- Place the skeleton in the hole.
- Place a gravestone in the air directly over the left side of the skeleton. Do not bury the skeleton.
You'll know you've been successful when the skeleton disappears and the hole fills in with dirt. Occasionally, a friendly ghost will spawn as well.