CHAPTER I Jarl Corvett selected the group—himself, Ungo, and five crewmen. They left their great ship on the far side of Vesta; came down with the night in a fast raider carrier. A hollow offered shelter. Like dust settling, they landed. Abandoning the craft, they pressed on towards their target. The hills fell behind. The final cordon was bypassed. Then, at last, bleakly, they stared down at the sprawling building that had been Wassreck's workshop. But lights beat on the white walls. Guards pac