A significant figure in the Baghdad circle who contributes to the unfolding mystery and social tensions.
Agatha temporarily takes an advisory role in Lucy's personal crisis.
Agatha is asked to advise Lucy about her complicated situation before Lucy dies.
Their affair is central to the social tensions and murder mystery.
Lucy is revealed to be having an affair with Lord Ponsonby -- Marmaduke despite their considerable age difference.
His explanation clarifies the possible method and motive.
Sir Constance examines Lucy's death and identifies strychnine, a readily available pesticide, as a possible poison.
Explore the full interactive character relationship map of Agatha and the Curse of Ishtar