Myglom was a member of the Spider Guild who at some point began to operate in Frontier Space. During this time, he and his kind discovered an asteorid that contained a unique yellow crystal with remarkable qualities. These crystals were seemingly powered by feeding on the fear of sentient beings and had the ability to nullify the energy of a Green Lantern Power Ring. Thus, to aid in the mining efforts, the Spider Guild established a prison colony on the asteroid where they offered to take in criminals for incarceration where they offered a rehabilitation service for offenders. In reality, the prisoners were forced to mentally experience their worst moments in their lives.