内容简介：
Cow and Owl are best friends. MOO HOO They do everything together, like make music (TWO COO) and go trick-or-treating together (BOO BOO ). But when a strange playmate shows up (ROO NEW), they will discover that three is better than two (NEW TRUE CREW). From the team that brought you last year's adorable hit RIBBIT RABBIT, MOO HOO combines another spare and effortlessly clever text with retro and eye-catching illustrations, and is sure to delight young readers and their parents alike.