In 1897, people found gold in the Klondike, Canada. Thousands of people traveled there to find more gold. They needed big, strong dogs to work for them. This is the story of one of those dogs, Buck. A man takes him from his family in California, and Buck has to pull a sled in Canada.
We all use a lot of plastic every day. It is cheap and strong, and plastic things last. But where does plastic come from? And what can we do to recycle all the plastic in our world? Penguin Readers is a series of popular classics, exciting contemporary fiction, and thought-provoking non-fiction written for learners of