New York, Walker, 1976. First US edition. Sir Roger Vale has recreated Valhalla and his daughter Brynhyldur is set to marry Thor. With his enchanted hammer, Thor can control the heavens, so how can Palfrey of Z-5 thwart this nefarious, fantastical plan?Spine slightly cocked with staining to front endpaper, a touch of wear to the dust jacket extremities. $10.00.