THE CARNELIAN CUBE - Lancer Books, 1st pb,1967- Abt VG   LAND OF UNREASON - Dell Books,1st Dell ed., 1979 - Nr. VG  THE CASTLE OF IRON - Pyramid Books, 1st pb, 1962 - Gd.+    WALL OF SERPENTS - Dell Books, 1st Dell pr., 1969 - Good                                                                                                           Four near-classic novels by one of the great fantasy-writing teams.  CUBE has been out-of-print for 50 years; the other three also appear to currrently be out-of-print.  LAND has interior illustrations by Edd Cartier (as appeared in Unknown Worlds). IRON & SERPENTS are #'s 3 & 4 in the Incomplete Enchanter  series.  CUBE: Light creasing on front corners and spine, cover darkening along spine, slight spine lean, light page toning, but firm binding and no writing.   LAND has light front cover creasing, modest edge/spine end wear, some spine lean.  IRON has just modest edge/corner wear, but the back cover has corner staining which has some effect on page corners.  WALL has cover creasing, moderate edge/corner wear and a bookstore stamp inside.