Board Thread:Speculation House/@comment-6500074-20130829103240/@comment-10390252-20140205122351

Blake did say that White Fang didn't need large amounts of stolen dust. It's quite possible that the train job meant that they had a huge shipment that they didn't need and were reluctant to just blow up in the middle of Forever Fall when no humans would be hurt. They may have put out feelers through the underworld to see if they could find buyers and Cinder then picked it up and put them in contact with Roman.