Everyone knows the Crane's Ichabod, Katrina, and Jeremy, but what if there was a 4th Crane, a hidden Crane. When Katrina comes to her daughter to save the future of man kind with the help of her father, who doesn't even know she exists. Glee/Sleepy Hollow/Once Upon A Time crossover. Oneshot. I had to write a "Short" story for English Class this is the product. Rated T for safety