Daemonic Outbreak on Merrin

Ever since their landing on the shores of Merrin, the Catechism had been preparing to break out of their small and vulnerable bridgehead. To the east, on the broad plains of the central continent, the Tau had all butvanished, waiting for the Chaos attack before striking back in a lightning counterstroke.

To the west, General Corchoran's combined force, known as Merrin Army Group North (MAGN), comprised of Tarsis PDF, Cadian, Zadocian and Librian regiments. In contrast to the Tau defence the Imperial Guard had dug in strongly, constructing defences in a line just south of the Noroway hills.

The Catechism considered its options and decided on a double strike,attacking Tau and Imperial assets simultaneously. Moonface's generals were gambling, in his absence, that the new "toy" he had given them would prove most decisive. The devices Moonface had gifted his generals were in fact daemonic artefacts, forged in the warp itself and given to Moonface by an unknown greater Deamon of Tzeentch. Moonface had made a pact with the Daemon that if his forces merely agreed to attack and slaughter targets of his and his generals wishes, they would be able to assume a corporeal form for a temporary period. This the devices, acquired by Moonface over many long millenia, would make possible.

The Daemon accepted the offer and agreed that his forces would attack Moonface's enemies. After all while the devices were under the control of Moonface and his generals, the Daemon could not manifest at will. Even so both sides began plotting and counter plotting, the Tzeentch Daemon setting in motion a plan it hoped would damn all of Tarsis to eternal Chaos.

With the pact in place the forces of the Catechism first moved into Tau held territory, just north of New Southwick. The Tau immediately detected this attack and prepared a limited response. Though numerous the Chaos forces were ill equipped and not backed up by Marine Legions. Shadowstrike,unaware of the Daemonic pact, determined the greater threat still lay with the Imperium, and continued with his planned assault on Montgate to the north, providing only a limited number of Hunter Cadres to meet the Chaos threat.

At first this looked like a sensible move as the Tau forces easily ambushed and halted the lead elements of the Catechism. However once Shadowstrikehad engaged the bulk of his Tau units, disaster occurred. Up and down the length of the front Daemons manifested as the ancient device was activated.Daemons of all powers, greater and lesser poured into reality, striking the Tau troops with little warning. Somehow they managed to survive the Tau firepower and ripped into Shadowstrike's lines, wiping out at least three whole Cadres before the Tau commander ordered a general withdrawal. The Tau then fled over a hundred miles as the Daemons disappeared back into the warp, leaving the Catechism foot troops to mop up and occupy the groun dgiven up. It had been a huge breakthrough for the forces of Chaos.

Meanwhile, while reports were coming in of daemonic incursions against the Tau the Catechism moved against the forces of General Corchoran. Here however the Daemons were expected, and when summoned the Imperial Guardwere waiting. The result was a much more tightly contested confrontation,with daemons being banished back into the warp by battle cannon and lasgun fire as often as making it to the Imperial line. However, once there the daemons proved themselves vastly superior to the mortal humans, ripping them and their tanks apart. By the end of 0211.008M42 General Corchoran's troops had been forced to retreat towards the mountains.