Lauren Oliver is known for her best-selling young adult novels (including the Delirium trilogy) but her new novel Rooms is her first written for adults. We ask her about making the transition, finding new readers, and writing a ghost story. Rooms actually has two story lines that nicely collide: First, a ghost story in which the ghosts can’t leave the house but don’t know why. Second, an estranged family story in which the ex-husband dies, leaving his alcoholic ex-wife, angry daughter and disaffected teen son to clean out their former home, not knowing that it's haunted. We go ghost-hunting with Lauren Oliver this week at Kirkus TV.