Sorry to revive an old post but I can't find any info on this anywhere. I can't figure out how to find treasure keys. I do the three weekly bounties from Petra every week and people tell me I get keys from it but I don't. I want to do more POE so I can level up my house judgment rank and it's no fun without the keys. Also I don't have any HoW exotics and need keys to get them to please my inner completionist. Anyone have the scoop on these keys.