Thank you for the additional pics and thoughts! I think that fleshes out the scenario some more. The other thing is this: the info screens Eveline’s Locket and Mirror Shield do not show they are part of any set at all, whereas the info screens for the Serpentine Flame Ring and Jeweled Golden Grasp DO show them as part of their respective sets. This makes it look like the latter two items were meant to be part of a set, but were not implemented correctly or had a bug. In my opinion, this supports the idea they were designed to be part of a set.