Adrian Van Reypen Egerton Jones, who prefers his nickname ''Average'' to his full name for obvious reasons, is a member of the very exclusive Cosmic Club, whose members are all experts in very diverse fields. Jones, who lives at the Club, is an adviser to firms on advertising, and uses his intelligence and good humour to solve very unusual crimes and cases.
Linder experienced upon the undefended rear of his person the most violent kick of a lifetime not always devoted to the arts of peace. It projected him clear of the window-sill. His last sensible vision was the face of the musician, the mouth absurdly hollow and pursed above the suddenly removed mouthpiece. Then an awning intercepted the politician's flight. He passed through this, penetrated a second and similar stretch of canvas shading the next window below, and lay placid on his own front steps with three ribs caved in and a variegated fracture of the collar-bone. By the time the descent was ended the German musician had tucked his brass under his arm and was hurrying, in panic, down the street, his ears still ringing with the concussion which had blown the angry householder from his own front window. He was intercepted by a running policeman.
"Where was the explosion?" demanded the officer.
"Explosion? I hear a noise in the larch house on the corner," replied the musician dully.