The Viking Symbol Mystery

The Viking Symbol Mystery is Volume 42 in the original The Hardy Boys Mystery Stories published by Grosset & Dunlap.
This book was written for the Stratemeyer Syndicate by Alistair M. Hunter in 1963.

Plot summary

The Hardy Boys and Chet Morton travel to Canada's Northwest Territories to recover a stolen Viking artifact. They also smash a group of thieves robbing recreational lodges around the Great Slave Lake. They visit Saskatoon, Saskatchewan; Edmonton, Alberta; Fort Smith, Northwest Territories; Wood Buffalo National Park; and Hay River.