So much Ricky just had time to think, but immediately found himself in a fresh danger. The two remaining hostiles had flashed past him at the same time as the centre one, while he threw his loop over it, but, realising apparently on the instant what his manœuvre was, they both swung out and round while he passed in his loop over the centre machine. It was smart work on the part of the two flanking hostiles. They must have instantly divined Ricky's dodge to get astern of them all, and their immediate circle out and round counteracted it, and as he came out of his loop brought them circling in again on him. For an instant Ricky was so concentrated on the centre machine that he forgot the two others; but, the centre one down and out, he was suddenly roused to the fresh danger by two following short bursts of fire which flashed and flamed athwart him, and caught a glimpse of the other two closing in again astern of him and "sitting on his tail." Both were firing as they came, and again Ricky felt the sharp rip and crack of explosive bullets striking somewhere on his machine, and an instant later knew the two were following him and hailing lead upon him. He cursed savagely. He had downed one enemy, but here apparently he was little if any better off with two intact enemies in the worst possible position for him, "on his tail," and both shooting their hardest. A quick glance ahead showed him the white glint of light on the wheeling wings of his Flight, attracted by the sight of his battle, circling and racing to join the fight. But, fast and all as they came, the fight was likely to be over before they could arrive, and with the crack and snap of bullets about him and his own two guns powerless to bear on the enemy, it looked uncomfortably like odds on the fight ending against him. Another loop they would expect and follow over--and the bullets were crippling him every instant. Savagely he threw his controls over, and his machine slashed out and down to the right in a slicing two-hundred-foot side-slip. The right-hand machine whirled past him so close that he saw every detail of the pilot's dress--the fur-fringed helmet, dark goggles, black sweater. He caught his machine out of her downward slide, drove her ahead, steadied her, and brought his sights to bear on the enemy a scant twenty yards ahead, and poured a long burst of fire into her. He saw the streaking flashes of his bullets pouring about and over her top planes, dipped his muzzle a shade, and saw the bullets break and play on and about the pilot and fuselage. Then came a leaping flame and a spurt of black smoke whirling out from her; Ricky had a momentary glimpse of the pilot's agonised expression as he lifted and glanced wildly round, and next instant had only in his sight a trailing black plume of smoke and the gleam of a white underbody as the enemy nose-dived down in a last desperate attempt to make a landing before his machine dissolved in flames about him.