Two cats are exact opposites: One is entirely white, the other black. Black Cat only goes out during the day, and White Cat only at night. Curious about what they might be missing, they each set off to find out. The two cats meet face to face and introduce each other to their worlds. Black Cat points out “the most beautiful things of the day—daisies, doves, and butterflies …” while White Cat reciprocates with “the most tasty treats of the night—snakes, bats, and mice.” Black Cat and White Cat become “inseparable. So inseparable, in fact, that they have one, two, three, four, five, SIX … KITTENS!” The arrival of their offspring necessitates the addition of a third color to the final page of what had been an exclusively black and white palette: orange, the color of the kittens. A deceptively simple visual style emphasizes the mirror quality of the two cats and the merger between their worlds. (Ages 2–5)