N. A. Perez was born in Haileybury, Ontario, Canada. The idea for The Slopes of War took shape after a family visit to Gettysburg, Pennsylvania. Touched by the terrible and significant battle that had been fought there, the author felt that although much had been written about the event itself, little had ever captured what was going on in the hearts and minds of the residents when the war rumbled to their doorsteps in July 1863.