Blood Fists
Dark monks with a blood vendetta against the Sword of Malicean (the existence of this 'order' is denied by all official sources). Their emblem is a red fist, inscribed on a black sun, and is never flown openly. Seeing this flown or otherwise represented openly would strike fear into many a paladin's heart.
No one knows where the Blood Fists are headquartered. Their political structure, and even the truth of their existence, was until recently a mystery. The Companions of the Rising Sun have had several encounters with them, and discovered a document which seems to indicate a hierarchical structure, leading back to the Amber Dragon.
The Companions have also recently discovered some sort of chant or prayer apparently recited as a litany by the Blood Fists.