"What if you could live forever? In this timeless story about immortality, friendship, and growing up, young Winnie Foster learns of a hidden spring in a nearby wood and meets the Tuck family, whose members reveal their astonishing discovery of the spring's life-changing power. Now Winnie must decide what to do with her newfound knowledge--and the Tucks must decide what to do with her. But it's not just the curious girl who is interested in their remarkable tale. A suspicious stranger is also searching for the Tucks, and he will stop at nothing until he finds them and uncovers their secret."-- Publisher.