So it's from a quest that doesn't work anymore? I saw 3 guardians killed today - of 2 chests, that were left abandoned, when dbl clicked, they poofed. they were reddish colored and unlocked. I've noticed the guardians appearing there(wisp dungeon) for days now, maybe they're giving away more houses(not), something else they 'forgot' to cleanup, or is there an actual use for these, other than the special fun when 2@once spawn?