Two works by a Benedictine become Cistercian provide an informative and entertaining, if not always edifying, exchange of accusations between a Black Monk and a White over monastic observances. The value of this work is not to be underestimated.... [it] gives modern readers some insight into the issues (trivial or otherwise) which caused such conflict and distress for a while in monastic circles" 'Grover Zinn, Speculum