Waterville, Me. : Thorndike Press, 2007.
Large print ed.
607 p. (large print) : map ; 23 cm.
In medieval Cambridge four children are murdered. The Catholics blame the Jews and they are placed under the protection of the King Henry II. The king sends for someone to do a scientific investigation into the deaths. The person sent is an Italian woman doctor, but in medieval Cambridge she must conceal her true identity to keep herself safe.