COSGROVE, Rachel R[uth]. The Hidden Valley of Oz. Illustrated by Dirk [Gringhuis]. Chicago: Reilly & Lee [1951]. 8vo, 313pp. Blue cloth with spine pictorially stamped in black and color pictorial paper label affixed to front. Pictorial endpapers; numerous b&w illustrations. Minute rubbing to spine ends and lower edge, label a tad rubbed and soiled in corners, else a fine copy in original color pictorial dust jacket (half-inch chip at base of spine panel, one-and-a-half-inch chip at upper right edge of front panel, light chips and tears to edges, some general rubbing and soiling).

First edition, binding A, in first state dust jacket (listing to this title on rear flap). Jam, a young boy from Ohio, travels by kite to Oz where he and a rat named Percy overcome Terp the Terrible, the giant who has enslaved the people of Hidden Valley. The 39th Oz book and the only one Rachel Cosgrove wrote for Reilly & Lee. Bienvenue p137.