Molly, Olive, and Dexter: The Guessing GameBy: Catherine Rayner Illustrator: Catherine Rayner Series: Molly, Olive, and Dexter Olive the owl is especially good at playing Guess What?, frustrating her friends in this tenderly illustrated story about an endearing trio. Outside their home in the oak tree at the edge of the meadow, three animal friends are eager to play Olives favorite guessing game. Guess what Im thinking about, says Dexter the fox, looking straight at his answer, giving it away.