The adventure continues! Join cousins Beth and Patrick as they travel through time to fifth-century Rome to locate a missing silver cup. After returning to Whit's after finding the Viking sunstone, another letter is left this time requesting a silver cup that belongs to a monk. If found, this cup may prevent the mysterious Albert from being imprisoned.
Emperor Honorius is hosting a gladiator battle at the Roman Colosseum in honor of a war victory. Beth attends as a slave and Patrick attends as a monk's apprentice, until he is taken prisoner and sent to fight in the arena. While in Rome, the cousins meet Telemachus, a monk that believes fighting is wrong and who is willing to give up his life to stop the killing.
When Beth and Patrick find the cup and return to their time, a new letter is waiting for them with information on the mysterious Albert's fate.