Dorothy and Billina the hen wash ashore and pick something to eat from a lunch-pail tree. Dorothy guesses that they are in a "fairy country" because lunch pails do not normally grow on trees and animals like Billina do not talk, but it's not Oz because that country has no seashore. They come across a message inscribed in the sand: "BEWARE THE WHEELERS"! Soon the pair meets these gaudily dressed, loud-yelling creatures who have wheels instead of hands and feet, and roll around on all fours. Dorothy and Billina climb a rocky mountain to escape the heelers and find a door carved into its side. Having found the key by the door, they open it and find Tik-Tok, a round copper mechanical man whom they activate with the key like a wind-up toy.
(Summary from Wikipedia)
The text for this book may be found at www.gutenberg.com.