TRIXIE BELDEN: THE MYSTERY OF THE CASTAWAY CHILDREN. #21.
Edition: First printing - a trade paperback. Oval illustration on front cover.
Racine, WI: Golden Press, (1978.). First edition - 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! Lists to #22 with the notation 'new' after #20-22. Original cover price of 95c. ISBN: 0-307-21592x.
Condition: Good condition (peeled spot on front cover, other wear to covers, but otherwise a clean copy).