Good Boy is a (surprisingly joyful!) imagining of the canine afterlife, and begins at the end: with euthanasia.
Euthanasia is a unique, deliberate kind of ending that some of us have been both lucky and unlucky enough to consent to on our pets’ behalves. During times of grieving, or when attempting to console, it can be comforting to imagine a place existing on the other side of death. In the vet/pet world, the Rainbow Bridge is frequently referenced as a place of this kind - and is what inspired much of the imagery in this story.
Good Boy is based on real life scenes from my experience as a veterinarian, and then is extrapolated beyond reality into an afterlife adventure for our canine main character.
In it, death becomes both a fact and fiction of life.