L'Únic

This illustrated children's book tells the story of a dog named Solo. Our protagonist lives on his island, with his things and his humans. But one day a new group of dogs appears. Solo doesn't like it one bit, and so he lets them know. He doesn't want to share his things and thinks that the presence of so many dogs is causing chaos (although it actually seems quite funny...). However, when everyone leaves the island, Solo discovers that he misses his new friends and decides to run to get them back. Will Solo realize that some things are better with friends?