Shadows of Acheron
The Faithmarked is a secret society with notably altruistic, or at least neutral intent. Their symbol is a triquetra surrounded by an interlocked triangle and circle. This symbol has also been noted as appearing on the Sword of Yusha.
This society is in direct opposition of Dark Dawn.
Diego Armando discovered his deceased master and mentor Mariz was a member of this organization, and intended on bringing Diego into the group as his successor. Unfortunately, he was murdered by Altruis Whisperwind before he could do this. Luckily, he kept a huge tome of encoded secrets, and Diego now has it in his possession. Diego is hard at work attempting to decode the book and learn more about the true nature of this society.