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| 28. THE SIGN OF THE CROOKED ARROW |
| FOREWORD |
| WITH only the slender clue of an arrow-shaped tie clasp, Frank and Joe Hardy pick up the trail of a cunning gang of thieves responsible for a wave of jewelry-store holdups. But their investigations are interrupted when a des- perate plea for help comes from their widowed cousin who lives on a cattle ranch in New Mexico. Frank, Joe, and their pal Chet Morton fly there immediately. The mysterious disappearance of one cowboy after another has given Crowhead Ranch the reputation of being jinxed, and it is quickly being stampeded toward financial ruin. The young detectives face grave danger before they un- cover a cleverly conceived plot engineered by the crooked arrow gang. In a dramatic climax Frank, Joe, and Chet aid law-enforcement officers in smashing the highly or- ganized band of criminals, putting an end both to the troubles at Crowhead Ranch and the jewelry-store robberies. |
| WHEN eccentric Thaddeus McClintock invites Frank and Joe Hardy to accompany him on a sea voyage, the teen-age investigators become entangled in a web of mystery. Who is trying to block the three from securing reservations on freighter ships that carry passengers? Does Mr. McClintock have unknown enemies? Or is there a sinister conspiracy afoot to keep Frank and Joe from going on the trip? Is Captain Harkness's report about sighting a phantom freighter just a figment of his imagi- nation? The determined efforts of Frank and Joe to find the answers lead to a hazardous game of wits with a ring of slippery smugglers and to a dramatic confrontation on the high seas. At the same time, the boys help their famous detective father solve his current case involving forgers who are selling counterfeit historical documents. Here is an exciting, action-filled mystery that will keep the reader on the edge with suspense. |
| THERE is a crisis in Bayport! Soon the city will be without water! Every night water strangely disappears from the new reservoir near Skull Mountain. Frank and Joe Hardy join forces with a team of skilled engineers to solve the baffling mystery. When the boys arrive at the foot of the mountain, they are met by a human skull rolling down the slope - a chilling warning from a weird hermit. Violence, too, stalks the mountain, where a gang controlled by a power-ful crime syndicate hatches a vicious plot. While trying to uncover the gang's sinister motive, Frank and Joe aid their detective father in his search for a missing scientist. By a clever experiment, the boys discover a clue to the puzzle of the vanishing water. Suspense mounts when they explore an ancient subterranean river channel, deep inside Skull Mountain. In a thrilling climax the famous young detectives solve their own mystery as well as Mr. Hardy's case. |
| DIFFICULT assignments are nothing new to the Hardy boys and this one that takes them to the Deep South is particularly challenging. Their mission: to vindicate a long-dead Confederate general, disgraced during the Civil War because he was accused of steal- ing hidden gold belonging to a bank. In a museum exhibiting relics of the Civil War, the brother sleuths find a puzzling clue that may help to clear the general's name and pinpoint the location of the hidden gold. But a dangerous criminal and his cohorts are out to steal the treasure and constantly harass Frank and Joe and their pal Chet Morton. Skillfully avoiding booby traps and flying bullets, the boys persevere in their perilous quest. The arduous search is full of surprises that will thrill all fans of the Hardy boys. |
| CAUGHT in their motorboat the Sleuth, by a sud- den storm at sea, Frank and Joe Hardy are helpless when the engine conks out. Drifting farther from shore amid the tumultuous waves, the boys are re- lieved to see the lights of a yacht. But their SOS is ignored. The shrill sound of a siren fills the night air. Mo- ments later, a helicopter drops an object alongside the Sleuth. To the young detectives' astonishment it proves to be a wallet containing two thousand dollars. The next day their close pal Chet Morton rushes to the Hardys' home to report that the Morton farm truck carrying a shipment of high-powered rifles belonging to his uncle, a big-game hunter, has been stolen. These two apparently unconnected events are clues in a tangle of mystery which turns out to be one of the detective brothers' most exciting adventures. |
| FOREWORD |
| FOREWORD |
| FOREWORD |
| FOREWORD |
| 26. THE PHANTOM FREIGHTER |
| 27. THE SECRET OF SKULL MOUNTAIN |
| 29. THE SECRET OF THE LOST TUNNEL |
| 30. THE WAILING SIREN MYSTERY |
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