The Enchanted Wood (Faraway Tree) by Enid Blyton

Jo, Bessie and Fanny move to the country and find an Enchanted Wood right on their doorstep! And in the wood stands the magic Faraway Tree, and in that tree live the magical characters that soon become their new friends - Moon-Face, Silky the fairy, and Saucepan Man. Together they visit the strange lands (the Roundabout Land, the Land of Ice and Snow, Toyland and the Land of Take What You Want!) which lie at the top of the tree and have the most exciting adventures - and narrow escapes!