"I'll keep that in mind," Lucy answers with a smile. "And likewise, really. Best to have some warning." She's not entirely sure she'd like to be Zagreus' informant, but in most cases she wouldn't mind telling him either. There are a few she's like to protect, people she's actually ended up caring for. Some of them can hold their own against Zagreus, and some of them probably can't. But for the majority of them, she doesn't care too much. She'd rat on the Doctor in a second, probably.