There's nothing wrong with "adding" to the lore if there isn't anything that fits. Caspar's character is from a made-up island chain. It exists just as much as it doesn't, from a lore standpoint, if that makes any sense. As long as it falls in line with the rest of what we know of Hydaelyn (no super-high-tech civilization that uses lasers or something), I really don't see any problem with it.
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