Before his and Narla's very eyes, the creatures shriveled. The grey wave drew back.
Craig clipped, "This crystal concentrates some ray that's deadly to the ourobos, just as on my world quartz glass lets ultraviolet pass. That was Tumek's secret. Somehow, he discovered Zenaor's plans and then worked out this answer.
"Now, Baemae craftsmen can duplicate the formula and produce crystals by the thousands. It means the end of the ourobos."
He moved the light. More grey slime dried to sticky viscous blackness.
Then, arm in arm, together, he and Narla walked out into Yoh's bright noonday light, shining down on the free-world-to-be of Lysor.