W-2

By Mary Pope Osborne.  Never had of The Magic Tree House books?  Well, it is #18 and it is about time!  This one just happens to involve a fanciful bison.  But the story of the Lakota and their ties to the bison are great life lessons.

Kids eat these books up (if they have any imagination).

Most are vintage, with kid-like wear.  Might be Ex Library, as well