"Thanks, no," replied Derek. "Think I'll try a pipe before I turn in again. Wonder if there'll be any more stunts? Hope not, as I'm on patrol to-morrow—or to-day, rather," he added, glancing at his wristlet-watch.

A minute or so later Derek knocked the ashes from his pipe, dived between the blankets, and was fast asleep, as if a hostile bombing-raid was merely one of the side-shows of life.

Just as the first streaks of dawn stole across the eastern sky the airmen were turned out by another alarm. Officers and men doubled on to the parade-ground to the accompaniment of a regular fusillade of bombs detonating at no great distance away.

"No. 1 Flight—in fours—right—double march!"

No. 1 Flight, detailed for special duty, promptly hurried off, while the remaining flights were ordered to stand at ease.

The nature of the commotion was soon obvious. The Chinks, as the Chinese labourers are termed, were seeking revenge for the deaths of several of their fellow-countrymen during the raid. With true Oriental cunning and stealth they had raided a store containing live Mills's bombs, and, armed with these sinister weapons, had surrounded the barbed-wire enclosure where the German prisoners were caged.

Before the handful of sentries realized what was taking place a terrific fusillade of bombs was directed upon the cage, and the strafing was still in progress when the airmen arrived upon the scene.

It did not take the new arrivals long to restore order. The Chinamen, expostulating and explaining in their quaint "pidgin" English, were relieved of the few bombs that had not been thrown across the barbed wire, and were marched back under escort to their compound.

"Bochee-man him dropee bomb on Englishman," declared an old coolie imperturbably. "Englishman he dropee bomb on Bochee-man—can do. Bochee-man dropee bomb on Chinaman; him dropee bomb 'on Bochee-man—no can do."

The British overseer explained that the victims of the Chinese were prisoners of war and must be protected; to which the Chinamen replied that they, too, were in a compound enclosed by a wire fence.