Poppy soon realized that she was on the western side of the river and not the southern. In other words she was on the wrong side. Luckily Poppy managed to climb aboard a boat and sail across to the other side with out getting caught.
Throughout a week Poppy looked and looked for Gus with no luck at all. She was very tired, hungry and disappointed to be having no luck. But that didn't make her give up. So she kept going.
After a while Poppy found it hard to cope and stay together. She missed her brother terribly. But she did not give up hope. She made a dog friend who never left her side and who helped her out with finding food and things like that. But all Poppy could really do was hope for the best and that one day she would find Gus and they wound live happily ever after.