I was reading Silmarillion and I came across this:
Someone make a mod out of that PLEASE! Just imagine being Melkor and having an army of Balrogs. BALROGS! I'd buy the shit out of that!
Now Melkor began the delving and building of a vast fortress, deep under Earth, beneath dark mountains where the beams of Illuin were cold and dim. That stronghold was named Utumno...But Melkor, trusting in the strength of Utumno and the might of his servants, came forth suddenly in war and struck the first blow...