SET OF 32 ALFRED HITCHCOCK AND THE THREE INVESTIGATORS paperback books published by Random House (many are first RH printings): 1-SECRET OF TERROR CASTLE 2-MYSTERY OF THE STUTTERING PARROT 4-MYSTERY OF THE GREEN GHOST 5-MYSTERY OF THE VANISHING TREASURE 6 SECRET OF SKELETON ISLAND 7 MYSTERY OF THE FIERY EYE 9 MYSTERY OF THE SCREAMING CLOCK 10 MYSTERY OF THE MOANING CAVE 11 MYSTERY OF THE TALKING SKULL 12 MYSTERY OF THE LAUGHING SHADOW 13 SECRET OF THE CROOKED CAT(1st printing w/bound-in mystery quiz) 14 MYSTERY OF THE COUGHING DRAGON 15 MYSTERY OF THE FLAMING FOOTPRINTS 17 MYSTERY OF THE SINGITHE NERVOUS LION 18 MYSTERY OF THE SHRINKING HOUSE 19 SECRET OF PHANTOM LAKE 20 MYSTERY OF MONSTER MOUNTAIN 22 MYSTERY OF THE DEAD MAN'S RIDDLE 23 MYSTERY OF THE INVISIBLE DOG 24 MYSTERY OF THE DEATH TRAP MINE 25 MYSTERY OF THE DANCING DEVIL 28 MYSTERY OF THE DEADLY DOUBLE 29 MYSTERY OF THE SINISTER SCARECROW 31 MYSTERY OF THE SCAR-FACED BEGGAR 32 MYSTERY OF THE BLAZING CLIFFS 34 MYSTERY OF THE WANDERING CAVEMAN 35 MYSTERY OF THE KIDNAPPED WHALE 36 MYSTERY OF THE MISSING MERMAID 38 MYSTERY OF THE SMASHING GLASS 39 MYSTERY OF THE TRAIL OF TERROR 40 MYSTERY OF THE ROGUES' REUNION 43 MYSTERY OF THE CRANKY COLLECTOR by Robert Arthur William Arden Nick West M. V. Carey, All but 7 have cover art by Robert Adragna (i.e. only 7 have the Stephen Marchesi cover art), interior illustrations (earlier books only) by Harry Kane, circa 1978-1987 - all books are either the "Hitchcock" or "Keyhole" logo versions (none of the books are the later "bullseye" or Knopf "Dodge" cover reissues).