"The Stable Boy" is the 18th episode of the American fairy tale/drama television series Once Upon a Time, which aired in the United States on ABC on April 1, 2012.The series takes place in the fictional seaside town of Storybrooke, Maine, in which the residents are actually characters from various fairy tales that were transported to the "real world" town by a powerful curse.It was co-written by Adam Horowitz and Edward Kitsis, while Dean White served as director.