First Edition. Original green decorative cloth, gilt lettering, octavo, in original decorative and printed publisher's dustjacket. Scarce early Burnett title to be found in original dustjacket, with eight full-page colored illustrations by Jessie Wilcox Smith. Despite being in the same vein as The Secret Garden, this is a less known title by Burnett, telling the story of a young girl who discovers a mysterious room in a suburban house being taken care of by her father. Includes ghost themes. Near Fine in modestly soiled but nearly Very Good dustjacket, inch chip at lower spine end, shallow chips at top spine end and flap corners, expected edge wear, few short horizontal closed tears a mid-spine.