Signal in the Dark

  Produced by Stephen Hutcheson, Charlie Howard, and theOnline Distributed Proofreading Team at https://www.pgdp.net

  Signal in the Dark

  _By_ MILDRED A. WIRT

  _Author of_ MILDRED A. WIRT MYSTERY STORIES TRAILER STORIES FOR GIRLS

  _Illustrated_

  CUPPLES AND LEON COMPANY _Publishers_ NEW YORK

  _PENNY PARKER_ MYSTERY STORIES

  _Large 12 mo. Cloth Illustrated_

  TALE OF THE WITCH DOLL THE VANISHING HOUSEBOAT DANGER AT THE DRAWBRIDGE BEHIND THE GREEN DOOR CLUE OF THE SILKEN LADDER THE SECRET PACT THE CLOCK STRIKES THIRTEEN THE WISHING WELL SABOTEURS ON THE RIVER GHOST BEYOND THE GATE HOOFBEATS ON THE TURNPIKE VOICE FROM THE CAVE GUILT OF THE BRASS THIEVES SIGNAL IN THE DARK WHISPERING WALLS SWAMP ISLAND THE CRY AT MIDNIGHT

  COPYRIGHT, 1946, BY CUPPLES AND LEON CO.

  Signal in the Dark

  PRINTED IN U. S. A.

  _CONTENTS_

  CHAPTER PAGE 1 HELP WANTED _1_ 2 EXPLOSION! _10_ 3 SPECIAL ASSIGNMENT _18_ 4 THE MISSING PLATES _26_ 5 SHADOW ON THE SKYLIGHT _35_ 6 BEN'S STORY _44_ 7 MAN OVERBOARD! _52_ 8 A SWINGING CHAIN _61_ 9 THE METAL DISC _69_ 10 COUNTRY SKIES _79_ 11 A FAMILIAR CAR _87_ 12 THE PROFESSOR'S HELPER _96_ 13 BEHIND OFFICE DOORS _104_ 14 A NOTE FROM BEN _112_ 15 THE DEMONSTRATION _120_ 16 SUSPICION _128_ 17 MAJOR BRYAN _137_ 18 A SECOND TEST _144_ 19 THE LANTERN SIGNAL _153_ 20 A CROOK EXPOSED _161_ 21 IN SEARCH OF WEBB _170_ 22 SALT'S MISSING CAMERA _178_ 23 ESCAPE BY NIGHT _184_ 24 A RAID ON THE _Snark_ _192_ 25 PICTURE PROOF _200_