Sax Rohmer 
Quest of the Sacred Slipper 

The theft of a holy relic sets off a deadly plot to reclaim it in this globe-trotting adventure by the author of the Fu-Manchu novels.Returning to England aboard the S.S. Mandalay, a journalist named Cavanagh is struck by an unsettling occurrence at Port Said, Egypt. A wounded beggar is brought aboard—his hand having been cut off—as he carried a professor’s luggage. This brutal episode is only Cavanagh’s first encounter with a merciless network devoted to protecting an ancient Islamic relic: a slipper once worn by the prophet Mohammed. According to their devout principles, only an anointed few should even touch the slipper or its container. Now, as it makes its way to a British museum, it imperils all those who come in contact with it. But they are not the only ones who want the stolen artifact. Chasing the irresistible story, Cavanagh soon finds himself caught between a murderous cult and a slick American thief in what could be the adventure of his life, if he manages to survive.