Murder in Mesopotamia

When nurse Amy Leatheran agrees to look after Lovely Louise, she finds herself taking on more than just nursing dutiesshe also has to help solve murders. Shortly after Louise confides in Amy that she has received anonymous letters and is afraid of being murdered, she is found clubbed to death. Fortunately for Amy, Hercule Poirot is visiting the excavation site, but will the great detective be in time to prevent a multiple murderer from striking again?