"I've never heard of such creatures." Raven says, secretly fearing such magical constructs would be beyond the power of this group to defeat.
In any case, Raven is ready to head back to the university. She wants to fill Professor Reeger in on what they have learned. Perhaps he knows more about this cult. And in case the group doesn't return from its attack tomorrow, the professor deserves to know of their progress.
After that Raven would prefer to sleep at the inn, rather than with the bedlam boys. In the morning, the group can return to meet the boys and finalize their assault plans. Raven would prefer her group first try the sewer entrance, but she's not sure how to coordinate w/the boys. She doens't necessarily trust them to act in any certain way. They might be tempted to hold back, and let the adventurers do the brunt of the fighting. I suppose that's a risk they'll have to take. Beats having no back-up at all.