Bossa and Nova are one of those wonderful, charming, witty, urbane couples that their neighbors adore. They live in a split- level cave in the trendy part of Big Field with Fruit Trees. Bossa's work takes him all over Big Field, and the animals love him. He is especially popular among elderly animals, who appreciate his old- world manners. Nova is a well-known local artist whose paintings adorn all the best nearby caves. On this particular day, Bossa is taking a day off to help Nova move the largest painting she has ever done. It's going to a cave near Big Hole with Mastodon Skeleton in It. An art collector has already paid Nova quite a few shiny stones and flint tools for it. Working together, the two of them move the large painting into the cave and hang it on the wall. Then they step back and admire Nova's work in its new home. "It definitely makes the cave come alive," says the art collector, "but I'm afraid it just won't do. It clashes with the other pieces. Unless... I can commission some more of your work to replace them?" Bossa and Nova grin. It may be time for Bossa to quit his job promoting conch- shell performances and become Nova's full-time agent... THE END