At the close of the year 1918, forced to flee England's green and pleasant land, Mary Russell and Sherlock Holmes enter British-occupied Palestine under the auspices of Holmes' enigmatic brother, Mycroft. "Gentlemen, we are at your service." Thus Holmes greets the two travel-grimed Arab figures who receive them in the orange groves fringing the Holy Land. Whatever role could the volatile Ali and the taciturn Mahmoud play in Mycroft's design...