A few emotions were competing for the mental energies of the Seven: utter confusion about who had dug this hole, and why. Empathy for the deeply embarrassed Einstein, who had promised them an entire truck. Disappointment that the only things left of it were a rust stain and a radiator hose. A mild sense of alarm at the idea that inexplicable persons with shovels were somewhere about. Swamping all of these, however, like a tsunami cresting over the mountains, was the awareness that they were in the presence of a real artifact from before Zero. As they had established on the flight up here, Doc had seen such things three times in his life, not counting museum exhibits. None of the others had ever seen one at all.