The Boy Inventors' Electric Hydroaeroplane (Esprios Classics)

""Are either Mr. Chadwick or Mr. Jesson about?"
"Humph!" and the gangling, rather disagreeable-looking youth who had answered the summons to the door of the Boy Inventors' workshop, gave a supercilious look over the dusty and worn, although carefully mended, clothes of the dark-eyed, dark-haired, slender youth who confronted him."