Jackets show light wear. Otherwise clean, unmarked, solid copies in VG condition. See photos. Titles Include: Precursor Defender ExplorerPrecursorSKU: 286201030599 $30.00 Regular Price$27.00Sale PriceQuantityAdd to CartBuy NowAuthorC.J. CherryhPublication Date1999ISBN9780886778361ConditionVery GoodPublisherDAW Books