"A' did that," said Tam; "that wee Hoon was saved from destruction owing to circumstances ower which A' had no control. A' was on his tail; ma bricht-blue eyes were glancin' along the sichts of ma seelver-plated Lewis gun, when A' speered the grand circus of Mr. MacBissing waiting to perform." Tam shook his head. "A'm hoping," said he, "that it was an act of mental aberration, that 'twas his first crash; and, carried away by the excitement and enthusiasm of the moment, the little feller fell into sin. A'm hoping that retribution is awaiting him. "'Ma wee Hindenburg,' says Mr. MacBissing, stern and ruthless, 'did I no see ye behavin' in a manner likely to bring discredit upon the Imperial and All-Highest Air Sairvice of our Exalted and Talkative Kaiser? Hoch! Hoch! Hoch!' "Little Willie Hindenburg hangs his heid. "'Baron,' or 'ma lord,' as the case may be, says he, 'I'll no be tellin' ye a lie. I was not mesel'! That last wee dram of sauerkraut got me all lit up like a picture palace!' says he; 'I didn't know whether it was on ma heid or somebody else's,' says he; 'I'll admit the allegation and I throw mesel' on the maircy o' the court.' "'Hand me ma strop,' says MacBissing, pale but determined, and a few minutes later a passer-by micht have been arrested and even condemned to death by hearin' the sad and witchlike moans that came frae headquarters." That "Little Willie Hindenburg" had not acted inadvertently, but that it was part of his gentle plan to strafe the strafed--an operation equivalent to kicking a man when he is down--was demonstrated the next morning, for when Thornton fell out of control, blazing from engine to tail, a German flying-man, unmistakably the same as had disgraced himself on the previous day, came down on his tail, keeping a hail of bullets directed at the fuselage, though he might have saved himself the trouble, for both Thornton and Freeman, his observer, had long since fought their last fight. Again Tam was a witness and again, like a raging tempest, he swept down upon the law-breaker and again was foiled by the vigilant German scouts from executing his vengeance. Tam had recently received from home a goodly batch of that literature which was his peculiar joy. He sat in his bunk on the night of his second adventure with the bad-mannered airman, turned the lurid cover of "The Seven Warnings: The Story of a Cowboy's Vengeance," and settled himself down to that "good, long read" which was his chiefest and, indeed, his only recreation. He began reading at the little pine table. He continued curled up in the big armchair--retrieved from the attic of the shell-battered Château d'Enghien. He concluded the great work sitting cross-legged on his bed, and the very restlessness which the story provoked was a sure sign of its gripping interest.