The Den by Adam Stower
Rabbit has moved to a new house and realises he will have to make new friends. But making new friends isn't always easy, as he is about to find out. Instead of feeling gloomy, Rabbit comes up with a Plan. He starts a little project by himself, and it turns out to be such fun that Squirrel and Dog, and perhaps even grumpy Pig, can't help being just a little curious. Perhaps they will even join in.