It shall be only four inches long, but as broad as my hand, and enough detonating powder in it to blow the shutter fifty feet into the air: and if there should be one of Jobson's lads behind the shutter at the time, why he'll learn flying, and naught to pay for wings." "Why, sir, you are planning the man's death!" "And what is HE planning?
Light your forge, and leave the job to me.

I'm Hillsborough too, and they've put my blood up at last." While Henry lighted his forge, Mr.Cheetham whipped out a rule, and measured the window exactly.

This done, he went down the stairs, and crossed the yard to go to his office.
But, before he could enter it, a horrible thing occurred in the room he had just left; so horrible, it made him, brave as he was, turn and scream like a woman.
Some miscreant, by a simple but ingenious means, which afterward transpired, had mixed a quantity of gunpowder with the smithy-slack or fine cinders of Henry's forge.

The moment the forge was hot, the powder ignited with a tremendous thud, a huge mass of flame rushed out, driving the coals with it, like shot from a gun; Henry, scorched, blackened, and blinded, was swept, as by a flaming wind, against the opposite wall; then, yelling, and stark mad with fright (for nothing drives men out of their wits like an explosion in a narrow space), he sprang at the window, head foremost, and with such velocity that the sawed iron snapped like a stick of barley-sugar, and out he went head foremost; and this it was made Cheetham scream, to see him head downward, and the paving-stones below.
But the aperture was narrow: his body flew through, but his tight arm went round the unbroken upright, and caught it in the bend of the elbow.
Then Cheetham roared, "Hold on, Little! Hold on, I tell you!" The scared brain of a man accustomed to obey received the command almost without the mind; and the grinders and forgers, running wildly into the yard, saw the obnoxious workman, black as a cinder from head to foot, bleeding at the face from broken glass, hanging up there by one hand, moaning with terror, and looking down with dilating eye, while thick white smoke rushed curling out, as if his body was burning.

Death by suffocation was at his back, and broken bones awaited him below..