"Up North" in Michigan is the small, peaceful town of Topinabee on Mullet Lake where Mike spends several summers fishing with his grandfather and playing with his new friend. Red, a year-round resident, introduces Mike to all the wonders and glories of Topinabee in the summer and to her special friend "Old Man Tree." Heaven Sent follows Mike through those summers and the following years. Although Mike leaves Topinabee, he treasures his time there and the impact those summers "Up North" made in his life.