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Because gold dragons did not chew firestone, their riders used agenothree tanks during Threadfall, flying low under the fighting wings. Ground crews also used agenothree to flame any Thread burrows that were found.
When Lord Holder Vincet of Nerat Hold worried about the effects of agenothree on his orchards, Mastersmith Fandarel informed him that agenothree was used as fertilizer for plants, including Vincet's orchards.