J.R.R TOLKIEN'S LEGENDARIUM

Balrogs, also called Valaraukar were menacing creatures about twice the height of a man consisting of fire and shadow. Balrogs induced great terror in all and were among Morgoth's most feared minions during the First Age. The wizard Gandalf fell fighting a Balrog when the Fellowship escaped Moria in The Fellowship of the Ring. In the First Age notable Elf Lords Ecthelion and Glorfindel each fell fighting separate Balrogs during the sack ofGondolin.