TRIXIE BELDEN: THE HAPPY VALLEY MYSTERY #9.
Edition: Trade paperback - oval cover illustration by Jack Wacker.
Racine, WI: Whitman, 1977. The format used for the most titles in the series - from #1-34. While not as well known as Nancy Drew, this is many girls' favorite series: Trixie is a real girl, with chores, school to attend, a little brother to babysit - but lots of adventures!. ISBN: 0-307-215776.
Condition: Good condition - crease on front cover, usual toning to the pages, other minor wear, previous owner's name.