It rankles, the idea that Claudius will need to receive Luo Binghe's permission for the privilege of helping Shen Yuan. Lan Wangji stays silent again. Nearly every part of this is aggravating. He can't dispute Luo Binghe's right to guard the future body of the man he loves. He knows that involvement with those plants is important to Claudius and that he will contribute invaluably to their success. Claudius is resilient, and he has set aside the problem of Luo Binghe as thoroughly as he can; still, Lan Wangji doesn't care to think of him forced to spend time, even in passing, with the mercurial emperor who tortured him. But if there is anything that will truly stay Luo Binghe's hand, it is the knowledge that Magnus and Claudius are helping speed Shen Yuan's return. Additionally, it should not be Magnus' responsibility to ferry messages on Luo Binghe's behalf, solely because he cannot be trusted to remain reasonable or to accept necessary assistance.

He has already told Magnus more than once to be careful around Luo Binghe. He trusts Magnus to look after himself, and he trusts that Claudius will use his signal flare if it becomes necessary.

Slightly discomfited, Lan Wangji returns to the third question of Magnus', the one he has not yet had a chance to ask. Do you believe your killer will attack anyone else here?

"Shen Yuan doesn't know if his murderer will attack others. If she had other plans, she did not tell them to him. She intended to neutralize Luo Binghe, because he was the most prominent threat to her, much as she attempted to neutralize you because she could not steal your memories in their entirety. He suspects she will lie low and try to gather intelligence, particularly if she discovers that Shen Yuan has a path for return."