Ursari was the leader of a group of slavers who often took villagers from a village on the planet of Serendipity. He and his men, including his second-in-command, Juma, meet Dylan at the village and are surprised to see defenses up. He offers Dylan Hunt a deal that he will take only a few villagers, even offering to have Dylan chose which ones, but Dylan refuses. Ursari was about to kill Dylan when Rev Bem arrived and he and his men fled in fear of the Magog.