Arthur starts to fly out of the lab, but then goes back to the mice in the bottle that he remembered seeing earlier.
As he exits the Cheese Hall, a blast of yellow knocks him down. Arthur manages to poke a hole in the yellow filmy stuff—it's cheese—and stand up.
Willbury, Marjorie, and the rest of the crew are okay once they get out from under the blanket of cheese.
Everyone guesses what happened to Framley. But where's Snatcher?
Suddenly there's a rumble. The foundation under the Cheese Hall has been washed away, and so the Cheese Hall begins to sink into the ground.
Everyone backs away as the building disappears into the ground. When it's gone, all that's left is a hole in the ground filled with water (and covered with a film of cheese).
It seems like things are headed toward a happy ending, at least until Marjorie points out that she's still too tiny. Arthur grabs her resizing machine prototype… but where will they get the size from?
They all set off for the ship, just as the townspeople arrive to gape at the hole where the Cheese Hall once was. No one notices a Snatcher-sized bump in the cheese film near the top of a nearby building.