Glee's Chris Colfer stopped by Rolling Stone's headquarters to talk with Peter Travers about staying busy with his new fantasy book, The Land Of Stories: The Wishing Spell, which is set to land atop the New York Times bestseller list this week. "There's lots of writing in hotel rooms and planes," says Colfer of his book. "Sometimes I'd have an idea on stage [on the Glee tour] and I'd be singing 'I Wanna Hold Your Hand' and I'd run offstage and go to my computer where the dressing room was and type the idea and then I'd go off to do 'Single Ladies.'" But with his story, Colfer lo