Flashback....

　　The day when the Gamma called The Triplets to his study.....(chap:31).

　　Lucas, Alex, and Benjamin started walking to Gamma's study.

　　"What you think he wants to talk about?" Alex asked Lucas.

　　"I don't know what he wants but if he asks anything about the plan we won't tell him. After what Erik has said, it's clear that he is involved with the rouge attack. He heard him talking with someone on phone about our pack graph. Erik ...