Sneaking into Dorman's manor isn't really too problematic, it's not having a real plan after actually getting inside that becomes the problem.
However, Dorman himself is only the Disc One Final Boss that the Ibur Gang leaves us to fight (after Terra somehow KOs TWO ARMORED GUARDS with a slingshot) and we have to race to escape the island before returning to the Desert Ruins to take the rear entrance into the newly-awakened Kefin.
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