GATHER IN THE HALL OF THE PLANETS & IN THE POCKET & OTHER SF STORIES by K. M. O'Donnell (Barry Malzberg)     TONIGHT WE STEAL THE STARS by John Jakes & THE   WAGERED WORLD by Lawrence M. Janifer & S. J. Theibich    Ace Books, 1971 & 1969, First Printings - Condition: Near VG                                                                                                        Ace Double 27415 contains a novel and a short story collection by K. M. O'Donnell (actually, Barry Malzberg).  Ace Double 81680 features a novel by John Jakes and a humorous novel by Laurence Janifer & S. J. Treibich.  Each is the third title of a series.  Each book has some wear on the spine ends and along the spine, in addition to light bits of wear on cover edges and corners.  Each of the four titles has a bookstore stamp and some pen writing on the first page.  The bindings are tight.