"Four o'clock mornin', sah; bugle him go for revally." Dudley Wilmshurst, Second Lieutenant of the Nth West African Regiment, threw off the light coverings, pulled aside the mosquito curtains, and sat upon the edge of his cot, hardly able to realise that Tari Barl, his Haussa servant, had announced the momentous news. Doubtful whether his senses were not playing him false Wilmshurst glanced round the room.