What is the book Tuck Everlasting about?

"Tuck Everlasting" tells the story of Winnie Foster, a young girl living in the woods, discovering the Tuck Family, who had discovered a spring water stream that granted eternal life. The Tucks have become disillusioned by their seemingly eternal lives and try to dissuade Winne from drinking the water after she finds she has fallen in love with Jess, one of the family's sons. The mysterious woodsman pursuing the Tucks further complicates life in the novel. Themes involving life's fragility and beauty and how one might live forever.