An epic survival-thriller about four teens who get lost in the Paris catacombs for days—a gripping and propulsive story of love, danger, betrayal, and hope… even when all seems lost.<br/><br/>"Tense and fast-moving, with a unique setting and compelling characters, Under the Surface is Diana Urban’s best yet."—Karen M. McManus, #1 New York Times bestselling author of One of Us Is Lying<br/><br/>Ruby is terrified to cave to her feelings for Sean and risk him crushing her heart.<br/><br/>Sean is pumped to spend a week with Ruby in Paris on their senior class trip, and he’ll wait however long until she’s ready to take things further.<br/><br/>But when Ruby’s best friend sneaks out the first night to meet a mysterious French boy, Ruby goes after her with two classmates, but caves to another temptation: attending mystery boy’s exclusive party in the Paris catacombs, the intricate web of tunnels beneath the city, home to six million long-dead Parisians. Only they never reach the party.<br/><br/>Underground, as something sinister chases them, they get lost in the endless maze of bones, uncovering dark secrets about the catacombs…..and each other. And if they can’t find a way out, they’ll die in the dark beneath the City of Light.<br/><br/>Aboveground, Sean races to find the girl he loves as a media frenzy over the four missing teens begins.<br/><br/>From award-winning author and rising YA star Diana Urban comes a twisty tale of four teens lost in the dark beneath the City of Light and the race to find them.