Road to Oz
In this Ozzy adventure, Dorothy is asked by the Shaggy Man how to get to Butterfield. Dorothy tries to explain it to him, but cannot do so clearly, and decides to go and show him the way. However, when Dorothy, Toto, and the Shaggy Man get to the intersection, all the roads become mixed up and Dorothy does not know where to go. They pick a road and make a journey that takes them to Oz where they arrive just in time for Ozma's irthday party.
You can buy this book through the Emerald City of Oz from the following publishers: