Now what? Was I to be reborn over and over, forever? Could a dog have more than one purpose? How was that possible? - W. Bruce Cameron

A bouquet of wonderful scents met my nose, and my heart leaped when I realized who I was smelling.
'Molly!' I heard someone call.
I whipped my head around everywhere and there they were, the people I'd been smelling. Everyone I'd ever loved in my life, standing at the edge of the water, smiling and clapping. I saw Ethan and Hannah and Trent and CJ standing in front, along with Andi and Maya and Jakob and all the others.
'Bailey!' Ethan yelled waving.
My names was Toby, and Buddy, and Molly and Max and Bailey and Ellie. I was a good dog, and this was my reward. Now I would get to be with the people I loved.
I turned, whimpering with you, and swam toward those golden shores.

I was a good dog. I had fulfilled my purpose. Lessons I had learned from being feral had taught me how to escape and how to hide from people when it was necessary, scavenging for food from trash containers. Being with Ethan had taught me love and had taught me my most important purpose, which was taking care of my boy. Jakob and Maya had taught me Find, Show, and, most important of all, how to save people, and it was all of these things, everything I had learned as a dog, that had led me to find Ethan and Hannah and to bring them both together. I understood it now, why I had lived so many times. I had to learn a lot of important skills and lessons, so that when the time came I could rescue Ethan, not from the pond but from the sinking despair of his own life.

This was, I decided, my purpose as a dog, to comfort the boy whenever he needed me.