Prince Christian Anthony will become King of Sydland, Austraileona in one year, on his 22nd birthday. That gives Mitchel Cave, an Assassin for the Queen of Cairnea one year to kill the prince before he rules the kingdom. Though the mission is simple at first, it is not as easy when Mitchel and Christian fall in love.

prom·ise /ˈpräməs/ noun a declaration or assurance that one will do a particular thing or that a particular thing will happen.