Set in the aftermath of World War Two, three Americans set out to travel in North Africa.
But the journey into the desert is to have a devastating effect on their lives.
Port fails to return to the hotel until morning and Tunners presence complicates matters for Kit.
The Americans meet an eccentric English duo whose offer of a lift serves to increase the tensions between them.
The Americans travel inland to Boussif, where Port and Kit experience the immensity of the desert.
Port and Kit travel on to Bou Noura while Tunner is driven to Messad by the Lyles.
The Moresbys leave Bou Noura for El Ga'a but Port's state of health is steadily worsening.
Port has a terrible fever from typhoid, and Kit is beginning to be very afraid.
In a state of shock, Kit flees into the desert, where she embarks on an extraordinary journey.
A long journey across the desert has taken a now very fragile Kit to the house of Belquassim.
Arrangements are made for Kit, now in a state of complete breakdown, to be flown back north to Oran.