[Papyrus breathes out slowly, halfway to a sigh. That's true too, they don't know any of if for sure. He can guess, he can worry, he can even think up plans to maybe talk to the people arranging this party, to advise them to maybe make their future secret messages ones that aren't risky to get caught in making...

But he can also look sidelong at Sans and that helpless shrug, and make a point of not further worrying his brother, as much as he can help it. Starting by pulling up a faint smile - one that gets a little more sincere and a lot more wry when he pointedly glances at the countertop.]

Free for you, maybe. Some of us will be polite guests, bringing homemade food, and that's not free. [At the very least, the food prep will give him something safer to worry about, so maybe he can wear out his worrying on something easy. But before they do their habitual retreat into the inane:] ...Was it... puzzles, or was it... The idea of hidden things at all?