Book excerpt: Join all your My Little Pony friends in these brilliant original adventures, inspired by the hit TV show. Starlight Glimmer loves studying magic with Twilight Sparkle at the Castle of Friendship - but it is a lot of work. When Starlight finds a secret room in the castle she's delighted to have a special space of her own. But outside in Equestira, there's trouble as time and magic go wonky. Could it be the mysterious Comet Tail's Curse? Can Starlight Glimmer and her friends work out what's going on?