Twilight Sparkle receives a mysterious message about a missing turtle! Only it's not just any turtle-it's the most famed of racing turtles, Silver Blaze! With friendship on the line, it's up to Twilight and Spike (armed with deerstalker caps and capes) to solve the mystery before it's too late! Elementary, my dear fillies! It's a brand-new Pony mystery to solve! Get ready to solve a mystery-Sherlock Holmes-style!