For context, the Thousand Sons were a legion of soldier-sorcerers who fell to Chaos (the baddies) and now wander the galaxy fighting all manner of aliens, as well as the Imperium (the less-baddies).
THOUGHT FOR THE DAY: "Death is the wish of some, the relief of many, and the end of
all."
The Silent Host, The Saqqrmose
Like the carrion birds whose skulls adorn their armor, the Silent Host
descend upon battlefields and graveyards seeking the dead and forgotten.
Long before Magnus the Red arrived on Prospero, before the Great Crusade,
before the Burning of Prospero, the sorcerers and warriors of the Silent Host
made up the funeral cult of Prospero. Known as the Saqrhit, they and their
acolytes handled the burial rites of Prosperan dead. In addition the Saqrhit
were proficient in summoning and banishing the Howling Ones, believed to be
manifestations of the outcast dead. Darker rumors held that some acolytes of
the Saqrhit became tainted by contact with the Howling Ones and were used as
assassins.
During the Great Crusade the Saqrhit lay mostly dormant, only rising
again from the ashes of Prospero and the decimation of the Rubric of Ahriman.
Now they gained infamy as the Silent Host.
Battling in a quiet unnatural even by Rubricae standards, the Silent
Host carry with them the hush of the grave. The screams of wounded become
scarcely more than whispers. A commissar's exhortations are as hollow as a
tomb. Even bolter fire and explosives are muffled around the Silent Host.
Survivors of skirmishes with the Silent Host describe it as "having a
shroud pulled over the world."
What drives the Silent Host is inscrutable. On one occasion, they will
strike at the heart of a hive city, raiding some spire Noble's private library for
a precious tome. Other reports describe the Silent Host scouring a deserted
battlefield, armored vultures or macabre valkyries, carrying off the corpses of
valiant champions and unknown heroes to great tombships. And yet, rumors drift
from backwaters of lost sons and daughters returned to the soil of their
homeworld, accompanied in state by an honor guard of silent Astartes.
Whatever the case may be, it is of no doubt to any observer that the
motivations of the Silent Host are as twisted and obtuse as the plans of the
Ever-Changing god which professes itself master over the Thousand Sons. In the
Silver Palace of Tzeentch, there are those who question how devoted the Silent
Host are to their patron, and whether the All-Seeing might not be so.
“The dust is speaking with the dust, the dead are sleeping with the
dead.”
**************
Color Scheme and Philosophy
The Blue of Tears
The Black of Mourning
The Grey of Ash
The Silver of Purity
The Copper of Sin
The typical Thousand Sons blue makes up a majority of the armor. This
applies to most units which have any sort of armor.
Darker and lighter blues are used both as gemstones (lapis and
sapphire) as well as the robes worn by most Character models. A dirty dark blue
is featured on some infantry units for variety.
Grey is an accent color, primarily seen on tabards and kilts of
infantry units.
Black is another accent color, almost exclusively used on Character
models (e.g. the shoulder pads of sorcerers) as well as on half of the Tzaangors. In fluff, black is reserved for those who remember Prospero. In reality, it's a
combination of needing a different armor color for some squads of Tzaangors as
well as needing a color that wouldn't clash with the skin of some mutated
Tzaangors.
Silver is used both as the primary trim color for all armor across
units. It is also used on many decorations.
Copper is an accent color, primarily used on decorations. Characters
and squad leaders get more copper. Additionally, copper is used on Astartes
shoulder pads to denote a special weapon.