Clark, Cassandra: - Cassandra Clark is an award-winning scriptwriter for theatre, radio and television, and the author of nine previous novels in the Hildegard of Meaux medieval mystery series. Running wild near the ruins of the Abbey of Meaux in the East Riding as a child became her inspiration for the series while the discovery in a dusty archive of the Chronicle of Meaux written in 1395 is the secret source for her research.