Darkness Follows Light is a love story, the story of Pattie and Earle: their courtship, romance, and extraordinary love. They married on a Teton mountain summit and honeymooned in romantic French Polynesia. Their shared passion for conservation and wilderness led them to remote corners of the globe tracking endangered species in Alaska, Ecuador, Madagascar, Tanzania, Uganda, and the Yellowstone backcountry. Pattie and Earle shared everything, even ill-fated illness. Both were afflicted. Their once enviable lifestyle disintegrated into the oppressive world of life-threatening cancer. After Pattie's courageous struggle and untimely death, Earle's life collapsed into dark despair. This memoir does not end with Pattie's tragic passing; rather, it goes on to trace Earle's personal journey into the darkest depths of grief to shine a light on bereavement and the miracle of love.