At 16, Hazel Grace Lancaster, a three-year stage IV–cancer survivor, is clinically depressed. To help her deal with this, her doctor sends her to a weekly support group where she meets Augustus Waters, a fellow cancer survivor, and the two fall in love. Both kids are preternaturally intelligent, and Hazel is fascinated with a novel about cancer called An Imperial Affliction. Most particularly, she longs to know what happened to its characters after an ambiguous ending. To find out, the enterprising Augustus makes it possible for them to travel to Amsterdam, where Imperial’s author, an expatriate American, lives. What happens when they meet him must be left to readers to discover. Suffice it to say, it is significant. Writing about kids with cancer is an invitation to sentimentality and pathos—or worse, in unskilled hands, bathos. Happily, Green is able to transcend such pitfalls in his best and most ambitious novel to date. Beautifully conceived and executed, this story artfully examines the largest possible considerations—life, love, and death—with sensitivity, intelligence, honesty, and integrity. In the process, Green shows his readers what it is like to live with cancer, sometimes no more than a breath or a heartbeat away from death. But it is life that Green spiritedly celebrates here, even while acknowledging its pain. In its every aspect, this novel is a triumph.