Supposedly a family-friendly audience favorite, The Secret Garden, currently being performed at Augustana College, is an emotional but often downright dreary musical based on the classic children's novel by Frances Hodgson Burnett. I know few children - or adults, for that matter - with the stamina to make it through this production, which lasted almost three hours on opening night. But duration aside, the decision by director Jeff Coussens and musical director John Pfautz to even attempt to stage Garden, with its cast of 19 in the relatively-intimate Potter Hall, was an audacious one that succeeded on both vocal and visual levels.