Astrid had no other choice than to tell Finn and Zander the truth but she left out some information. The fact that it was her grandfather who captured her brothers, she just said it was some power-hungry Lycan who wanted her by his side to take over all territories. And he could do that by first eliminating Alaric.
"Can I ask something from both of you?" Astrid lastly asked after.
"What is it?" Finn went ahead to enquire.
"Please don't tell Alaric any of this."
Both Finn and Zander's expressions became complicated. Wasn't it better to inform Alaric? He could help.
"Why not?" It was Zander this time who asked.