This time, the magic of the castle brings our three friends back in time to Ancient Rome. Emperor Invictus is a powerful ruler, but madness is marching in his head. He even condemns a young boy – innocent, of course – to be sent to the lions, and the three girls decide it is time to go. But imagine their surprise when the way back is not that easy to find. A mysterious and hair-raising adventure, "The Emperor's Slave" is five-star recommendation from "The Enchanted Castle" series.