OOC:
Star children could mean "children of the stargazers", which was basically a cryptic way of saying "people who had a parent that was an astronomer", which may or may not have supernatural/prophetic associations in the Realms. (Don't ask me. I just watched the show, I didn't write it.) It could also mean something more concrete like "people who got turned into magic star beings" which is what happened to Kosar, essentially. Also David Bowman in 2001, but that's a whole other crossover event. ;)
Diana's face goes blank in shock at Malchor's statment about Kosar. She continues to stand motionless as Bobby and the orc-halfling begin yelling. She barely hears them. Tension grows in Diana's body, driven by a mix of fear, pain, anger, and loss. She feels her muscles tighten. Her grip on the Staff becomes like iron. There's a moment where a long buried part of her reaches out, reminds her how good it feels to embrace the rage. Then she hears Kosar's voice in a memory. "You're too attached to your anger," he said. And of course, he was right. Later her Buddhist teacher would tell her she was too attached to Kosar, which was also true, in a way. Diana takes a deep breath and wills her muscles to relax.
"I don't understand," Diana says to Malchor, her voice quivering only slightly.
"I thought Kosar had moved beyond the physical realm. How do you capture someone like that?" Even as she asks it, she recognizes that the answer is obvious: magic.
"Scratch that. It doesn't matter. How do we get him back?"