Tower Twelve was found by exploring. Its made entirely out of bedrock and has a large 12 of glowstone in the corner. Its much larger than the other towers, including Tower Three. It seems likely that it will be used as a testing ground much in the same way Tower Three was. It may be a computer along with the other towers, but that is unknown.
Location[]
X | 722 |
Y | 65 |
Z | -434 |