The Silver Thaw (Harlequin Romance #2386)

There was more than one fish in the sea Amelia was delighted when Tom, her fiance, agreed to accompany her and her father on a holiday fishing trip to Norway. Luckily, Amelia's father found Gideon van der Tolck, another fishing enthusiast, so she and Tom would have plenty of time to themselves. Amelia wouldn't admit to herself that the handsome Gideon was far more attractive than Tom. But what did that matter--it was far too late for second thoughts .... Harlequin Romance #2386, February, 1981.