The Night Myst

The Night Myst is the assassin's guild that Ganymede spent his teen years in. The group was formed by a man named Davidson, and conducted a vast amount of quiet kidnappings and serial killings in its time, making entire villages disappear within weeks. However, there were a few good members, such as Ganymede and Trevor.

Location
The location is kept unknown to the outside except for Night Myst Members, current or old. An Old location for the base was said to have been somewhere up north, but due to The destruction to about a Third of its members, most likely they've changed spots to avoid The Fighter Ganymede, and his seething rage.