Egypt has always attracted serious scholarly attention from diplomatic and imperial historians and an important aspect of the Anglo-Egyptian relationship was the Sudan. Egypt perceived the Sudan to be part of the Fertile Crescent — a view largely justified following the Anglo-Egyptian conquest of the Sudan from Mahdist forces and the establishment of the Anglo-Egyptian Condominium over the area in 1899. From the British perspective, large-scale investment in irrigation schemes accorded the Sudan a growing prominence within the Empire. More importantly, British concerns centred around the dissemination of Egyptian propaganda into the Sudan that encouraged a politically unified Nile valley. The Sudanese disturbances that occurred between June and August 1924, while a popularly elected nationalist Wafd Government, under the Premiership of Saad Zaghlul, was in power in Cairo — coupled with the November 1924 assassination of Sir Lee Stack, Sirdar and Governor-General of the Sudan — seemed to confirm British fears of Egyptian subversion. This article examines the schism that opened up between the men-on-the-spot and the newly installed Conservative Foreign Secretary, Austen Chamberlain, over how to address the threat posed by Egyptian nationalism and secure Britain’s interests in the region following Stack’s assassination.