Leap In The Dark by Donald Gordon 1971 HB DJ Pub. William Morrow and Co., Inc. An SST adventure by the author of Star-Raker. An aviation thriller of high excitement about the British super sonic transport (SST) program and a mysterious series of events which threatens to sabotage it. HB with DJ and has 221 pages. EX-LIBRARY copy.DJ: very good in clear cover, Covers: very good/tape stains from DJ cover taped down, Pages: very good/tiny marks/stains. EX-LIBRARY copy with usual of stamps, pockets, etc.