Kentucky Lumber and Millwork Company contracted to supply Rommell Company millwork for use in the construction of a school building. While the work was in progress, the Kentucky Lumber mill was destroyed by fire. For two months thereafter, Kentucky Lumber and Millwork supplied Rommell with millwork purchased from a third party. Kentucky Lumber and Millwork did not wish to continue this plan and declared that the contract was ended. Rommell brought an action against Kentucky Lumber and Millwork to enforce the contract. How will the court decide?