Both funny and poignant, this wordless picture book tells the story of a penguin whose small section of iceberg cracks away from the rest, sending the bird on a journey around the world, passing iconic landmarks along the way. The lovely illustrations include a glowing green aurora borealis and a gently smiling Statue of Liberty, among others. But what will happen when the penguin's ice floe gets smaller and smaller? The ending is a witty, thought-provoking invitation to discuss environmental concepts of global warming and habitat loss with older kids.