Abominations were originally an advanced and cruel form of punishment, conceived on a whim by the Sovereign.
Deep within an Abomination lies the body of an exile who has betrayed his trust or broken the most sacrosanct of Speyer's laws.
Survivors speak of a high-pitched, near-hearing wail that permeates their memories, a sound deeper than the screams of their fallen comrades.
It is the only sound an Abomination can make, the only sound it is allowed to make: a high-pitched howl to convey the depth of its misery and torment.
Invasive brain procedures impair the cognitive function of convicts, as chemical and hormonal treatments are applied to cause them to lose control of their gifts that bind them to life and forcibly bind them to a lower organism.
The humble ant's instinctive hierarchical physiology somehow made it more responsive to pheromonic commands, forcing the body to respond to commands while allowing the compromised psyche trapped in the infernal amalgam to have just enough control to moan his anguish while carrying out the will of his tormentors.
