"Uh-huh. His idea is that some of the plasmoids the Old Galactics were using on Manon might have got away from them, or just been left lying around, so to speak, and could have survived till now. He thinks they might even be reproducing themselves. He's looking for them with a special detector he built."

Trigger held up a finger on which was a slim gold ring with a small green stone in it. "Like this one?" she asked.

"He's got a large version of that type of detector with him too. But he thinks that if any wild plasmoids are around, they're likely to be along the lines of 113-A. So he's also constructed a detector which reacts to 113-A."

"I see." Trigger was silent a moment. "Does Mantelish have any idea why Repulsive is the only plasmoid known to which our ring detectors don't react?"

"Apparently he does," Holati said. "But when he starts in on those subjects, I find him difficult to follow." He looked soberly at Trigger. "There are times," he confessed, "when I suspect Professor Mantelish is somewhat daft. But probably he's just so brilliant that he keeps fading beyond my mental range."

Trigger laughed. "My father used to come home from a session with Mantelish muttering the same sort of thing." She glanced at the ring again. "By the way, have any plasmoids actually been stolen around here for us to detect?"

He nodded. "Quite a few have been snitched from Harvest Moon and various storage points by now. I wouldn't be surprised if some of them turn up here in the dome eventually. Not that it's a serious loss. What the thieves have been getting away with is small stuff—plasmoid nuts and bolts, so to speak. Still, each of those would still fetch around a hundred thousand credits, if you offered them to the right people. Incidentally, if asking you to this conference has interfered with any personal plans, just say so. We can put it off till tomorrow. Especially since it's beginning to look as if Mantelish won't make it here either."

"Either?" Trigger said.

"Quillan's already had to cancel. He got involved with something during the afternoon."

"Oh," she said coolly. She looked at her watch. "I do have a dinner date with Brule Inger in an hour and a half. But you said this meeting wasn't to take more than an hour anyway, didn't you?"