The Saladin Murders: Omar Yussef, Book 2

Omar Yussef, teacher-turned-detective, is sent to the troubled Gaza Strip to carry out a routine school inspection. There he learns that a fellow teacher has been arrested, and, instinctively recognizing the signs of grave injustice, he sets out to investigate. The person responsible for the teacher's arrest is Colonel al-Fara, the most powerful - and dangerous - man in Gaza, and Omar's friends urge him not to intervene. But Omar confronts the colonel, and soon finds himself caught in a ruthless power struggle.