"Proceed at once to Bombay. There call for orders at Governor's office. Mesopotamia—urgent," he read, and those who watched him saw not so much as a flicker of an eyelash or the smallest change of expression. He folded the letter up again and very deliberately placed it back in the envelope and very leisurely deposited it in a pocket. Then he finished his curried chicken, called for a cup of coffee, and sat smoking a cigarette and chatting with his brother officers.

"Well?" asked Major Evans, as Joe Douglas rose to leave. "I'm serious, my boy, this time. Everyone knows that things are moving over in Europe and elsewhere, and everyone can guess that you are off again on some expedition. Here's good luck! If I can do anything for you in your absence don't fail to write, for you know that Charlie Evans will stand by you."

Joe Douglas nodded to the dozen subalterns seated about the table, and puffed a cloud of tobacco smoke above their heads.

"Come out for a moment, Charlie," he said. "Good-bye, you fellows, I'm just off on a little trip. Keep things going till I come back again to the mess."

He was on his feet by now, and strode clanking out on to the roof of the fortress, followed by Major Evans. Then the two men walked to the parapet of the fortress and stood side by side looking out over that gorgeous scene, neither of them venturing to speak for a few minutes. At length Joe Douglas turned to his companion.

"Listen to this, Charlie," he said. "I'm off on something bigger than I've had to tackle before, though I'm to cover much of the ground that I'm used to. It's Mesopotamia again."

"Ah! Mesopotamia—a nasty place, up North of the Persian Gulf—heat—mosquitoes—Arabs," muttered Major Evans.

"Not to mention Turks and Germans and ruffians," said his brother officer quietly; "but I'm used to them all, Charlie, and am not thinking of myself. I'm thinking of Geoff. You know I've been his guardian ever since my old friend, his father, was lost in that Frontier expedition. He's joining the Mahrattas almost at once, and I badly wanted to keep an eye on him. You'll do that for me, eh?"

"Willingly."

"And will take charge of his father's papers?"