About Dot and Tot of Merryland by L. Frank Baum (1856 - 1919)
From the publisher's feed
Dot and Tot of Merryland is a 1901 novel by L. Frank Baum. After Baum wrote The Wonderful Wizard of Oz, he wrote this story about the adventures of a little girl named Dot and a little boy named Tot…
in a land reached by floating on a river that flowed through a tunnel. The land was called Merryland and was split into seven valleys. (Summary by Wikipedia)