Shadow, the Golden Retriever, and Chance, the Labrador, were missing their big brother, Tito, the English Bulldog, who recently passed away. Tito went to the vet for a simple tummy ache but never came back home. Their humans were very sad too, and the house felt empty without Tito's jolly snorts and drooly kisses. Shadow and Chance often lay on Tito's bed, still smelling like him, and closed their eyes, imagining that he was there with them. One day, while on a walk, Shadow and Chance saw a scrappy dog barking at a squirrel. The little dog's fur was matted and messy, and his eyes were sad. They said hello to the scrappy dog, but he growled and ran away.

Shadow and Chance knew that something was not right with the scrappy dog. Later that day, they saw him again, begging for scraps near a restaurant. They wagged their tails at him and offered him some of their treats. This time the scrappy dog let out a hoarse woof and licked their faces. They became friends. Over the next few days, Shadow and Chance would find the scrappy dog sleeping under a bush or digging in a trash can. They would bring him food and fresh water, and sometimes share their toys with him.

The scrappy dog would follow them everywhere, and they would play hide and seek in the park until it was time to go home. Shadow and Chance loved having a new friend, but they also didn't like seeing him living on the streets. They sensed that the scrappy dog was lonely and scared. One day, when Shadow and Chance were playing tug-of-war with a stick, they heard a loud screech. They saw a car speeding towards them, and they froze in panic. The scrappy dog, who was hiding behind a tree, dashed towards them and pushed them out of the way.

The car missed them by inches, and the scrappy dog lay motionless on the ground. Shadow and Chance nudged him with their noses, but he didn't move. They whimpered and licked his face, hoping he would wake up, but he didn't. Their humans rushed to the park and saw what had happened. They took the scrappy dog to the vet, and they tried everything to save him, but it was too late. Shadow, Chance, and their humans were heartbroken.

They cried for their new friend, who had given his life for theirs. They understood what loss meant, and how important it was to cherish the moments they had with each other. As the days went by, Shadow and Chance would often think of the scrappy dog and how brave he was. They would remember his wagging tail, his playful yips, and his kind eyes. They also remembered how lonely he was before they met him. They talked to their humans and begged them to adopt the next dog they met in the park, just like they had adopted Tito and them.

Their humans listened to them and promised to visit the animal shelter soon. Shadow and Chance learned about hope, loyalty, and friendship through the eyes of the scrappy dog. They also learned how to appreciate the good times they had with each other. They knew that life could be unpredictable, but that they had each other to lean on. They missed Tito dearly, but they knew that he was watching over them from doggy heaven. They couldn't wait to meet their new friend and give him the love and care he deserved.

As the sun set over the park, Shadow and Chance lay on the grass and watched the stars twinkle. They felt the breeze ruffle their fur, and they heard a distant bark that sounded like the scrappy dog's. They raised their heads and sniffed the air, wondering if it was just their imagination. But then they saw a flicker of light in the shadows, and they barked with joy. They ran towards the light, wagging their tails, and hoping to find their new friend. And that is the story of how Shadow and Chance learned about loss, hope, loyalty, and friendship, and how they met the scrappy dog who changed their lives forever.