Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stop history from changing

"The legions were on the march... but Rome had never faced an enemy like this one. An evil renegade Time Lord has allied himself with British tribesmen to lure a Roman army -- and a Roman Emperor -- into a deviously plotted trap. History will be changed and an army of fanatic conquerors loosed upon the Galaxy if a Time Lord and his Companions cannot stop the renegade's sinister plan."This adventure for FASA's Dr. Who RPG touches on one of my favorite subjects: The implications of altering history. It's a great read; I'd bet it would be fun to play!