Wedding Knot — Pat Roy

On the run from a shady past, Meg stows away in the canoe of a young, by-the-book Mountie on a mission to find out what's gone so wrong during the first year of the Royal Canadian Mounted Police. 

Robert's wealthy uncle arranged this frontier adventure in hopes it would make a man of him. But that task soon falls to Meg. Her hope is that this won't turn into a disaster like everything else in her life.

They face lawless frontiersmen, demented commanders,  prairie fires, and the most frightening danger of all--falling hopelessly in love.

For though Meg yearns to build a life with her Mountie, there's no way on earth they can wed. His wealthy family is grooming him for a position of leadership in the Canadian government and an older, Irish woman with a questionable past would be the ruin of him.

Wouldn't you know, just when she finds the courage to face her future, she's on the run again.