Check out the full bracket here before voting in Round 4 below. Polls close Sunday at 1 p.m. ET.The HobbitTo Kill a MockingbirdThe landmark fantasy novel that launched a million quests, dragons and dwarves optional. Not as bleak as grown-up successor-epic Lord of the Rings, the tale of Bilbo Baggins thrills and chill kids of all ages. — Darren FranichA shortlist of great American novels would be incomplete without Lee’s Pulitzer Prize-winning coming-of-age tale, which revolves around scrappy tomboy Scout Finch. The novel’s setpiece is a racially-charged trial that Scout is almost too young to understand — though her retrospective recollections of it are anything but childish. — Hillary BusisThe Princess BrideThe Harry Potter seriesHello. This is a Renaissance era-inspired fairy tale of true love and adventure. You will fear the Dread Pirate Roberts and cheer for Buttercup and Westley. Prepare to read. — Shirley LiAn orphaned wizard attends a magical boarding school, makes friends, casts some spells and learns he is the one who must defeat bad guy Voldemort. Alongside a bunch of unforgettable characters — Snape! Hagrid! Sirius! Dumbledore! –­ Harry goes from an 11-year-old child to a 17-year-old man and, along the way, teaches us a bunch of lessons about love, kindness and bravery. The pop culture phenomenon spanned seven books and eight blockbuster films. — Erin StreckerThe Perks of Being a WallflowerThe Uglies seriesPerks follows Charlie through his high school experience via letters he writes to an anonymous stranger. The heartfelt tale was made into a movie starring Logan Lerman and Emma Watson in 2012. — Samantha HighfillTally Youngblood lives in a post-apocalyptic world where looks determine the social order. The four-book series begins with Tally eager for her sweet sixteen, as it’s the age at which all citizens endure extreme plastic surgery to become part of the ‘Pretty’ class. — Jennifer ArellanoThe Hunger Games seriesThe Fault in Our StarsThere’s a reason that Collins’ dystopian tale inspired a seemingly infinite army of post-apocalyptic imitators: It’s just that good. Brave, poverty-hardened Katniss Everdeen becomes an unlikely revolutionary when she volunteers to compete in the 74th Annual Hunger Games; the rest is blockbuster franchise history. — Hillary BusisIn this heartbreaker, teens Hazel Grace Lancaster and Augustus Waters meet in a cancer support group and fall in love. Prepare for tears ­ and a trip to Amsterdam to meet Hazel’s favorite author, the reclusive Peter van Houten. A film version, starring Shailene Woodley, hits theaters next summer. — Erin Strecker