"Would you like a scrap, Spotty?" shouted the pilot. "Shall we take 'em on?" "Don't ask me," shouted Spotty. "Ask the Hun. He'll scrap if he wants to, and you and your old 'bus can't help it, Barry." "Thought you knew the old 'Marah' better," retorted Barry. "You watch"; and he twisted in his seat and opened his engine out. Now the "Marah" was the pride of her Squadron, and, most inordinately, of her pilot. Built line by line to the blue-print of her class, fraction by fraction of an inch in curve, straight, and stream-line, to the design of her sisters in the Squadron, differing no hair's-breadth from them in shape, size, engine, or propeller, she yet by some inscrutable decree was the best of them all in every quality that counts for best in a machine. There are theories to account for these not uncommon differences, the most popular and plausible being that the better machine is so merely because of some extra skill and minute care in her and her engine's building, last touches of exactness and perfection in the finish of their parts and their assembling. The "Marah" could outclimb anything in the Squadron with the most ridiculous ease, outclimb them in feet per minute, and in final height; she could outfly them on any level from 100 to 20,000 feet, could "out-stunt" them--although here perhaps the pilot had as much to say as the machine--in any and every stunt they cared to challenge her on. Barry, her young pilot, literally loved her. He lost no chance of trying her out against other types of machines, and there were few of the fastest and best types even amongst the single-seater scout machines that could beat her on a level fly, or that she could not leave with her nose held slightly down. No two-seater Barry had ever met could come anywhere near the "Marah" in stunting, in the ease and speed at which he could put her through all sorts of fancy spins, loops, side-slips, and all the rest of the bag of air tricks. How much of her superiority was due to her own qualities and how much to her pilot it is hard to say, because certain it is that Barry could climb her nearly a thousand feet higher, and drive her several knots faster, than any other pilot who had flown her.