both lawyers began speaking at once , simon vigorously protesting that it was too early to reach such an agreement , that sums of money had changed hands having to do with these possessions , that some sort of new inventory was required , something a lot more detailed than had been done ; arthur hammermill was averring in low , quasi-hostile tones that no one had ever told him that the artifacts were of museum quality , and that they would have to discuss this in detail .