Herbert, Mary H.VALORIAN / DARK HORSE / LIGHTNING'S DAUGHTER / CITY OF THE SORCERERS. (4 BOOKS) Lake Geneva, WI TSR Very Good 313 pp / 314 pp / 309 pp / 314 pp. ISBNs - 1560765666 / 0880389168 / 1560760788 / 1560768762. 'Valorian' is a first printing from 1993 and is a prequel to 'Dark Horse', which is a first printing from 1990. 'Lightning's Daugher' and 'City of Sorcerers' are both first printings, from 1991 and 1994 respectively. The first four books of the Dark Horse series. Moderate browning to inside of covers, a few small corner creases to covers, vol. 3 has a few pages with tiny corner crease and light creases on spine. minor edge wear to covers.