The second Tracker gnome, called tracker gnome 2 in-game, is a member of the gnome army who was sent to get co-ordinates of the Khazard forces' HQ in the Battlefield south of Ardougne. The second gnome can be found in the building north of the Battlefield. He is encountered in the Tree Gnome Village quest to get part of the coordinates of the battlefield so the gnomes can fire the ballista. The tracker has been captured, beaten and put to jail by Khazard's Army.
The update history project is a work-in-progress – not all updates to this topic may be covered below. See here for how to help out!