My dear dad collected lots of Heron Books and these 16 are all Alistair MacLean titles:

HMS Ulysses; Ice Station Zebra; The Dark Crusader; Bear Island; South by Java Head; The Golden Rendez-vous; The Stan Bug; Night Without End; Where Eagles Dare; When Night Bells Toll; The Last Frontier; Puppet on a Chain; The Guns of Navarone; Force 10 from Navarone; Caravan to Vaccare; and Fear is the Key.

All is virtually new condition, not having been opened or read! As there are 16 and therefore quite heavy collection only please.