Opulent Room (descend via the Great Lift); also Main Temple in Aquarfall
Give to the blacksmith at Forge (Void) or Forge (Castle Grounds) for the Ruby Cuirass. Or trade at Large Tent / Market / Restaurant for 1,200g + a 20% discount, or at Shop / Merchant's Shack for 1,200g + a 25% discount, or sell to Charls for 1,200g.
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