"You know Sans?" Lambert asks, quizzically. He hasn't connected Papyrus to the cat the angel brought into the cafe, but that seems an unimportant detail in the larger scheme of things... but at the question, he frowns harder.

"Whatever we can. We can't let them complete the ritual." He'll just leave out that his real motivation is because he's pretty sure Winter's version of the ritual involves Childermass dying. However, it's at this point that he'll narrow his eyes at Papyrus, growing defensive.

"... Just who are you, anyway? You were interested in the Animal Fair before." God. What he'd give to go back to a few weeks ago, when that was his biggest problem...