On St Scholastica's Day, Oxford explodes in one of the most serious riots of its turbulent history. Fearing for their lives, the scholars choose the University ... » 

On St Scholastica's Day, Oxford explodes in one of the most serious riots of its turbulent history. Fearing for their lives, the scholars choose the University at Cambridge as their temporary refuge. Within hours of their arrival, the first of their number dies, followed quickly by a second. And now the race is on to solve the riddles. «