As the building work progresses, Tahir feels respect for the traditional skills of Moroccan workers.
Meanwhile, problems begin with the house's guardians as the shanty town they live in is threatened with demolition and they move to the Caliph's house.
But, after only a few days, and an inundation of unwanted visitors, they tire of their new home and decide to return to the shanty town, leaving the Shahs in peaceful bliss.
However, sickness hits the household.
When their doctor discovers they've all been poisoned because the guardians have been leaving daily offerings for the jinns in the well, he prescribes an exorcism.
Producer Kirsty Williams.