My bosses and I (I work in a second-hand bookstore) are attempting to find a book for a client. Unfortunately he remembers only vague details of the plot, no title or author, and only roughly when he read it. If we could find even the title/author information for him I’m sure he’d be grateful, and we’d be satisfied.
Anyway, the information below is all he can give, it doesn’t ring a bell with any of us - you guys?
It is a fantasy trilogy apparently set in a medieval period, moving between Britain and and a Scandinavian area.
A character’s name (main or otherwise) is possibly Harold
This book was read 25-30 yrs ago, but obviously could have been written anytime before that.
The main character is some sort of berserker, apparently possessed repeatedly (or something) by a bear, or Bear-God.
The presence of the Norse god Odin is also recalled.
Yes, the details are sketchy but I’ll leave it with this board and cross my fingers.
Another series is 5 books and called “The Bifrost Guardians” by Mickey Zucker Reichert. I don’t remember a Harold in it, but the Norse gods play a major role in the plot.
I know these aren’t exact, but I also know how sketchy these customer recollections can be.
If I understand the link given by Danalan, the Harrison books are too recent to be the ones. Perhaps it was one of Poul Anderson’s books. Take a look at Three Hearts and Three Lions, The Broken Sword, or Hrolf Kraki’s Saga.