What happens to micheals best friend in kensukes kingdom?

In "Kensuke's Kingdom" by Michael Morpurgo, Michael's best friend, a dog named Stella, does not experience any direct events in the story since the narrative primarily focuses on Michael's adventures after being shipwrecked on a deserted island. However, Michael often reflects on his bond with Stella, which highlights his feelings of loneliness and longing for home during his time on the island. The story emphasizes the emotional connection between Michael and his life before the shipwreck, including his relationship with Stella.