Nine-year-old Susannah Winston is sent to stay with her Uncle Dennis, an officer with the Mounties - The Royal Canadian Mounted Police - in Regina, Saskatchewan, and has many adventures on the prairie.

Susannah Winston travels to the Yukon in this second installment of her adventures, having many extraordinary experiences in the far north.

"This is the same Susannah whom you met in Susannah of the Mounties. She's still a tomboy, and still a mischief. She rebels at school restrictions, at the Englishness of it all—in contrast to her own Canada; but she learns that fun can be created anywhere, and that discipline is not only a military necessity. A good picture of an English boarding school a generation ago, with enough of the desired boarding school peccadillos, but of basic human qualities as well." -from: Kirkus Reviews, 1938