"Trixie Belden and the Happy Valley Mystery", written by Kathryn Kenny, published by Whitman Books ,copyright 1971. The book is 7-3/4" long by 5-1/4" wide.
Trixie Belden is the title character in a series of girl's detective mysteries from 1946 to the 1980"s.
212 page hard cover book in good condition with no rips,tears, or writing. The pages are brown with age. The cover has light shelf wear.