General Contracting was hired by the city of Rockyville to put in a new road through a mountain pass for $2 million. General Contracting did reasonable soil tests as would be expected of a contractor under their circumstances. The job would involve about 80% costs related to highway materials and 20% labor costs. When General Contracting started building the road, they discovered that it was solid granite a few feet down and that the mountain was unlike any they had ever seen in the state. It would cost them over $5 million in costs just to complete the job. If General Contracting refuses to complete the job at a loss and Rockyville sues, what result