On hearing of the proposed attack upon von Lindenfelt the naval airmen, who were rapidly recovering from the effect of their arduous and perilous trek, volunteered to remain and co-operate. For observation purposes and machine-gunning the Huns they would be able to render yeoman service, while, when their offer was promptly accepted, the ingenious officers set to work to manufacture bombs.

These missiles, rough and ready in construction, were none the less formidable, while the moral effect was a great consideration. The "eggs" consisted of small sacks filled with cordite, both loose and in cartridges, while by manipulating the fuses of Mills bombs, so that the period between release and explosion was increased to six seconds, the improvised missiles were made to detonate just before reaching the ground after a fall of six hundred feet.

The tempestuous shouts of the Haussas announced the arrival of the transport column, for food was beginning to run short and the men's rations would have had to have been reduced had not the expected stores been speedily forthcoming. There was petrol, too, enough for a series of flights over a distance of two hundred miles; while to the intense satisfaction of officers and men big Jock Spofforth rejoined the regiment, looking none the worse for his encounter with the lioness, except for the still raw scars on his brawny arms.

"Just in time for a dust-up, I find, old man," was his reply to Wilmshurst's greeting. "You've been lucky already, I hear? Where's that MacGregor chap? Is he still with the battalion?"

Briefly Dudley explained what had happened.

"Skunk," muttered Spofforth. "So we've been taking a dirty Hun under our wing, so to speak. I don't mind admitting now that I didn't think much of the blighter when he pushed off and promptly fainted."

"But I scooted, too," interrupted Laxdale, "and left you to tackle the lioness."

"I also plead guilty," added Danvers.

"But with this difference," rejoined Spofforth: "you were unarmed and he had a rifle. Ah, well; you fellows have stolen a march on me, and I've a lot of leeway to make up. When do we move against M'ganga?"

"As soon as we are in touch with the Indian crush," replied Danvers. "It may be tomorrow."