"Archaeological thefts Fiction." . . "mystery- juvenile fiction, series, wilderness, boy dectectives." . . . . "Detective and mystery stories." . . "Archaeological thefts." . . "Hardy Boys (Fictitious characters) Juvenile fiction." . . "Mystery fiction." . . "Archaeological thefts Juvenile fiction." . . "Northwest Territories" . . "Read-up." . . "Boy detectives Fiction." . . "Hardy Boys (Fictitious characters)" . . "Teenage boy detectives Fiction." . . "Mystery and detective stories." . . "Brothers Fiction." . . . . . . "Juvenile works" . . "Juvenile works"@en . . . . . . . . "The Viking symbol mystery"@en . "The Viking symbol mystery" . . . . "Detective and mystery stories"@en . . . . "Detective and mystery stories" . "The Viking Symbol Mystery #42"@en . . . . "The Canadian Northwest beckons Frank and Joe Hardy to mystery and adventure. It all starts when a French-Canadian trapper, Caribou Caron, makes a historical and valuable find -- a carved rune stone left by Vikings centuries ago near Great Slave Lake. When Caribou Caron attempts to sell the artifact to a representative of a museum, it is snatched by thieves. Like the intrepid Vikings of old, Frank and Joe, with their close pal, Chet Morton, set off on a perilous quest in the Northwest Territories to recover the valuable artifact before the robbers can decipher the runic symbols telling the location of a buried treasure. A series of dangerous obstacles confront the boys as they scour the lake-dotted northland by plane and trek through the vast wilderness searching for the elusive criminals. By clever deduction and dogged determination the young sleuths pinpoint the robbers' hideout and close in for the showdown, only to be imperiled by an onrushing herd of stampeding buffalo. Again, Franklin W Dixon has woven a suspense-filled story that will thrill his worldwide legion of fans. - Flyleaf." . "The Viking symbol mystery ; The mystery of the Chinese junk" . . "Fiction" . . . "Fiction"@en . . . . "Frank and Joe Hardy meet many adventures while trying to recover a valuable stolen artifact in the Northwest Territories." . "Frank and Joe Hardy meet many adventures while trying to recover a valuable stolen artifact in the Northwest Territories."@en . . . "In the Northwest Territories of Canada, the Hardy brothers and Chet Morton help to recover a stolen Viking relic."@en . "In the Northwest Territories of Canada, the Hardy brothers and Chet Morton help to recover a stolen Viking relic." . . . . . . . . . . . "The viking symbol mystery"@en . "The Viking symbol mystery ; The mystery of the Chinese junk ; The mystery at devil's paw" . "The viking symbol mystery" . "Frank and Joe Hardy and their friend Chet Morton journey to the Canadian Northwest to try to recover an ancient Viking rune which has been stolen by some criminals who hope it will lead them to a buried treasure."@en . . . . . "Mystery fiction"@en . "Mystery fiction" . . . . "The Viking symbol mystery / M" . . . . "The Viking Symbol Mystery (The Hardy Boys #42)" . . . . "The Viking symbol mystery. [42]"@en . . . "Electronic books"@en . . . . . . . . . "The viking symbol mystery ; The mystery of the Chinese junk ; The mystery of the devil's paw"@en . . . "Frank and Joe Hardy meet many adventures while trying to recover a valuable stolen artifact in the Northwest Territories" . . "Hardy Boys (Fictitious characters) Fiction." . .