When a young humpback whale mysteriously swims into San Fransisco Bay and continues up to fresh water, millions of people began to wonder why. Scientists figured out a way to get Humphrey, the whale, back to the open ocean, but they had to try different strategies. This true story is great for animal-lovers and definitely a good independent read. The drawings are fun and show great detail of the humpback. Age 7 and up. ( )