Hela continued in her cold voice, "Don't worry, there's no reason to fret. Our Research Society operates rather informally. Except for a handful of members who maintain close private communication, the rest only convene two to four times a year, all while in disguise.
"Your sister behaves quite relaxed at these gatherings. Her interactions would resemble her usual demeanor with you. However, she'll take care to guard her genuine information. You can certainly play the part.
"And many of the coded terms and expressions we employ for communication are familiar to you. Given your relationship with your sister, she won't intentionally keep them from you or abstain from using them."
"Understood." Lumian's mood suddenly soured. "She'll also explain the exact significance to me and attribute it to a philosopher from back home or even Emperor Roselle."