|The Lord of the Locusts|
None (he has no physical form)
|Book Appearance:|| Eyes of the Storm
Quest for the Spark (mentioned-only)
|First appearance:|| Out From Boneville (mentioned-only)
Eyes of the Storm (first true appearance)
|Last appearance:||Crown of Horns|
The Lord of the Locusts (mostly refered to as simply The Locust) is a nightmare creature without physical shape or form and is tied with his servant Briar for the main antagonist of the original series.
Before the Series
Long ago, The Locust became tired of being a spirit without physical form and desired to become part of the physical world. However, in order to do this, he would need to possess the body of a mortal. He chose the queen of the dragons, Mim, as his host. Mim lost her sanity and went on a rampage. After a terrible battle that claimed the lives of many dragons, the dragons were forced to turn Mim into stone and bury her in the earth, trapping the locust in her.
Nights of Lightning
Out From Boneville
The Lord of the Locusts used his powers to create a swarm of locusts which caused the Bone cousins to separate, although they didn't realize he had caused it until much later.