Guess they're going to starve on their trip.

Shiki said

And that joke is ancient!

What's the joke, exactly? I'm not seeing a pun, but based on Ao's question, is it meant to be an El Shaddai reference? I guess that'd be "ancient" in internet terms...

Yeah, it's the El Shaddai joke. And who wants to bet against the witch's house being destroyed?