They wandered the kingdom until they found a Rogul containing the Forbidden Power of Blazing Burn and gained hope that they could build a town for them to live in called Burningham.
The Nexo Knights teach them to fight again when the Stone Monster Army planned to steal the Rogul from their town.
When a combo attack defeats the Stone Monsters, they are destroyed with the animating energies sucked back into the Cloud of Monstrox.
Upon the Colossus of Ultimate Destruction being turned into glass by Clay and being shattered, most of the Stone Monster Army fled.
Among the members of the Stone Monster Army are: The third wave of Nexo Knights action figures features the CyberBiters which are a group of cybernetic vampires infected by Monstrox's computer virus.