Morgan le Fay has promised to make Jack and Annie masters of the tree house if they can solve four riddles.
There they meet a mustang herder named Slim as they search for the answer to the second riddle..
In Ghost Town at Sundown, the Magic Tree House whisks Jack and Annie back to a Ghost Town in the Wild West of the 1880s.
Morgan le Fay has promised to make Jack and Annie masters of the tree house if they can solve four riddles