This thread shall cover the lore additions regarding the Emperor's Children in the book The Battle for Berra Garmon.
THE GARMONITE CONCLAVE 006.M31-
Across the cluster the actions of Horus’ agents escalate, leaving hundreds of senior officials dead and resulting in widespread sabotage including the depressurisation of agri-domes upon Delta-Garmon II and mutiny among the void docks of Theta-Garmon X. At Nyrcon City upon Beta-Garmon II, a Conclave of the Garmonite Lords is called to address the growing unrest, only for a Millennial of the Emperor’s Children under the guise of Loyalist survivors of Isstvan V to intercede. After days of foreboding silence from Nyrcon City, the Palatine-lady and a host of Loyalist Garmonite Lords are publicly announced to have withdrawn from office, with a freshly appointed regent-council having taken their place. In the face of broad dissent and distrust at what many see as an obvious coup by Horus’ forces, the new regent-council enacts martial law, setting into motion a cascade of events that will initiate open war across the cluster within a year as Loyalists marshal their own forces to restore Palatine-lady Vail to power.
THE RUINSTORM
The Loyalists’ capabilities to send and support reinforcements into the cluster were hampered by the Ruinstorm; a tempestuous disturbance in the Immaterium, a storm that swallowed the stars themselves that was called forth with the culmination of arcane rituals conducted by the Word Bearers on distant Calth. Lesser effects were felt by the Traitors, who, in the shadows, enacted malevolent schemes to bolster their numbers and subjugate the worlds of the Garmon Cluster. Operatives of the Alpha Legion and companies of Emperor’s Children having awaited the time to rise up during the Garmon Cluster’s isolation, sent even prior to the rousing of the Ruinstorm as infiltrators and agents of disorder, destabilised the control of the Garmonite Lords. Titan Legios and Knight Households were set in opposition, bringing their cataclysmic weapons to bear in battle, embroiling worlds throughout the cluster in open warfare as control was wrested back and forth between Traitor and Loyalist control. In the face of such wanton destruction, Dorn’s Great Muster was sent into disarray and instead of a cohesive Loyalist force, the defenders of the Garmon Cluster were fragmented and disorganised, fighting as isolated pockets of resistance. Only with the cataclysmic destruction of Davin and the resultant waning of the Ruinstorm did the warp turbulence that shrouded the Garmon Cluster abate and allow Rogal Dorn to commit further reinforcements to break the Warmaster’s momentum. Any efforts to repel or destroy Horus’ forces within the Garmon Cluster would be costly, but miniscule in comparison to the price of ceding the territory. If Loyalist forces were to retreat from the sector and fall back to the Segmentum Solar, there would be little to prevent the Warmaster’s armada from filling the vacuum behind them and establishing a direct route through which to march his armies upon Terra. Even as humanity itself was divided and burgeoning darkness threatened to smother all that was light, a fire still burned in the hearts of many. In some, the fire was fuelled by hope, a belief that all could be rebuilt in the wake of Horus’ betrayal, if only his advance on Terra could be halted. In others, fires of hatred burned, fuelled by the desire to exact vengeance upon the Emperor’s treacherous son and all that followed with him. None, however, were ignorant to the fact that there could be no peace for Mankind now, for no loyal son could bear to tolerate the existence of a traitor and no traitor could rest whilst a single loyal soul stood in defiance.
Traitor Host Contingent: The Garrison Of Deitus-
In excess of 35,000troops stood in defence of the world of Deitus, with significant contingents of not only Sons of Horus but also World Eaters and Emperor’s Children. Amongst them was the Warmaster himself, accompanied by prominent individuals of the XVIth Legion hierarchy.
Shattered Legions-


EMPEROR’S CHILDREN- One of the first Legions to succumb to malign influence, the Emperor’s Children lost much of their cohesion in the early years of the Horus Heresy. Many, such as the notorious 97th Company under Commander Vonerios, joined with other splinter forces of Traitors, pursuing selfish goals away from their Primarch. Others, such as Captain Saul Tarvitz in the opening hours of the Horus Heresy, aghast at the betrayal perpetuated by their genesire, sought to redeem their Legion's name, allying themselves to scattered Loyalist forces and seeking to strike back.
THE GARMONITE CONCLAVE 006.M31-
Across the cluster the actions of Horus’ agents escalate, leaving hundreds of senior officials dead and resulting in widespread sabotage including the depressurisation of agri-domes upon Delta-Garmon II and mutiny among the void docks of Theta-Garmon X. At Nyrcon City upon Beta-Garmon II, a Conclave of the Garmonite Lords is called to address the growing unrest, only for a Millennial of the Emperor’s Children under the guise of Loyalist survivors of Isstvan V to intercede. After days of foreboding silence from Nyrcon City, the Palatine-lady and a host of Loyalist Garmonite Lords are publicly announced to have withdrawn from office, with a freshly appointed regent-council having taken their place. In the face of broad dissent and distrust at what many see as an obvious coup by Horus’ forces, the new regent-council enacts martial law, setting into motion a cascade of events that will initiate open war across the cluster within a year as Loyalists marshal their own forces to restore Palatine-lady Vail to power.
THE RUINSTORM
The Loyalists’ capabilities to send and support reinforcements into the cluster were hampered by the Ruinstorm; a tempestuous disturbance in the Immaterium, a storm that swallowed the stars themselves that was called forth with the culmination of arcane rituals conducted by the Word Bearers on distant Calth. Lesser effects were felt by the Traitors, who, in the shadows, enacted malevolent schemes to bolster their numbers and subjugate the worlds of the Garmon Cluster. Operatives of the Alpha Legion and companies of Emperor’s Children having awaited the time to rise up during the Garmon Cluster’s isolation, sent even prior to the rousing of the Ruinstorm as infiltrators and agents of disorder, destabilised the control of the Garmonite Lords. Titan Legios and Knight Households were set in opposition, bringing their cataclysmic weapons to bear in battle, embroiling worlds throughout the cluster in open warfare as control was wrested back and forth between Traitor and Loyalist control. In the face of such wanton destruction, Dorn’s Great Muster was sent into disarray and instead of a cohesive Loyalist force, the defenders of the Garmon Cluster were fragmented and disorganised, fighting as isolated pockets of resistance. Only with the cataclysmic destruction of Davin and the resultant waning of the Ruinstorm did the warp turbulence that shrouded the Garmon Cluster abate and allow Rogal Dorn to commit further reinforcements to break the Warmaster’s momentum. Any efforts to repel or destroy Horus’ forces within the Garmon Cluster would be costly, but miniscule in comparison to the price of ceding the territory. If Loyalist forces were to retreat from the sector and fall back to the Segmentum Solar, there would be little to prevent the Warmaster’s armada from filling the vacuum behind them and establishing a direct route through which to march his armies upon Terra. Even as humanity itself was divided and burgeoning darkness threatened to smother all that was light, a fire still burned in the hearts of many. In some, the fire was fuelled by hope, a belief that all could be rebuilt in the wake of Horus’ betrayal, if only his advance on Terra could be halted. In others, fires of hatred burned, fuelled by the desire to exact vengeance upon the Emperor’s treacherous son and all that followed with him. None, however, were ignorant to the fact that there could be no peace for Mankind now, for no loyal son could bear to tolerate the existence of a traitor and no traitor could rest whilst a single loyal soul stood in defiance.
Traitor Host Contingent: The Garrison Of Deitus-
In excess of 35,000troops stood in defence of the world of Deitus, with significant contingents of not only Sons of Horus but also World Eaters and Emperor’s Children. Amongst them was the Warmaster himself, accompanied by prominent individuals of the XVIth Legion hierarchy.
Shattered Legions-


EMPEROR’S CHILDREN- One of the first Legions to succumb to malign influence, the Emperor’s Children lost much of their cohesion in the early years of the Horus Heresy. Many, such as the notorious 97th Company under Commander Vonerios, joined with other splinter forces of Traitors, pursuing selfish goals away from their Primarch. Others, such as Captain Saul Tarvitz in the opening hours of the Horus Heresy, aghast at the betrayal perpetuated by their genesire, sought to redeem their Legion's name, allying themselves to scattered Loyalist forces and seeking to strike back.