As he mounted and his eyes rose over the level of the top step of the companion, he was aware of a slight young man, very smartly dressed in white ducks, a loose silk shirt, a low, soft collar and pale, rose-coloured tie, a perfectly cut grey jacket with a small blue line in it, rose-coloured socks, and white buckskin boots, who was lying almost at full length in a wide deck-chair against cushions, with a panama hat tilted so far down over his eyes that its brim rested delicately upon his well-cut, rather impertinent short nose. From his lips curled gently pale smoke from a cigarette.

As Isaacson stepped upon the Oriental rugs which covered the deck, this young man gently pushed up his hat, looked, let his legs quietly down, and getting on his feet, said:

"Doctor Isaacson?"

"Yes," said Isaacson coming up to him.

The young man held out his hand with a nonchalant gesture.

"Glad to meet you. I'm Doctor Baring Hartley, in charge of this sunstroke case aboard here. Came down to-day from Assouan to see how my patient was getting on. Will you have a cigarette?"

"Thanks."

Doctor Isaacson accepted one.

"Fine air at Assouan! This your first visit to the Nile?"

The young man spoke with scarcely a trace of American accent. With his hat set back, he was revealed as brown-faced, slightly freckled, with very thick, dark hair, that was parted in the middle and waved naturally, though it looked as if it had been crimped; a small moustache, rather bristling, because it had been allowed only recently to grow on a lip that had often been shaved; a round, rather sensual chin; and large round eyes, in colour a yellow-brown. In these eyes the character of the man was very clearly displayed. They were handsome, and not insensitive; but they showed egoism, combined with sensuality. He looked very young, but was just over thirty.