Join the fun in Acorn Wood! Bear is writing letters. One, two, three. Bear goes out to post them. Who lives in this tree? Bear is writing letters to his friends. Lift the flaps and join Frog, Squirrel and Mole for Bear's special surprise! Collect all four books in the Acorn Wood series: Fox's Socks, Hide-and-Seek Pig, Rabbit's Nap