The officer watched her intently, twiddling the dials on his stingbox that controlled the intensity and form of the power. There was a violent, cracking jolt and Derkhan flew backwards against the wall, collapsing to the floor.

The second officer sent his sharp bulbs over the edge of the table, hoping to catch Lemuel, but he was flattened hard against the wood and they flew harmlessly around him. The officer pressed a stud and the cords rapidly retracted back into a ready position.

Lemuel stared at the stricken Derkhan and hefted his pistols.

Isaac bellowed in rage. He hurled another vast pot of unstable thaumaturgic compound at the militia. It fell short, but burst with such violence that it splashed onto and over the shields, mixing with the distillate and sending two officers screaming to the floor as their skin became parchment and their blood ink.

An amplified voice burst through the door. It was Mayor Rudgutter’s.

“Stop these attacks. Be sensible. You aren’t going to get out. Stop attacking us and we will show mercy.”

Rudgutter stood in the midst of his honour guard with Eliza Stem-Fulcher. It was highly unusual for him to accompany a militia raid, but this was no ordinary raid. He was stationed across the road and a little way along from Isaac’s workshop.

It was not yet completely dark. Alarmed and curious faces peered from windows up and down the street. Rudgutter ignored them. He took the funnel of iron away from his mouth and turned to Eliza Stem-Fulcher. His face was creased in irritation.

“This is an absolute bloody shambles,” he said. She nodded. “Well, however inefficient they are, the militia can’t lose. A few officers might be killed, regrettably, but there’s no way der Grimnebulin and his cohorts are getting out of there.” The faces peeking nervously from behind windows all around suddenly annoyed him.

He raised the loudhailer sharply and yelled into it: “Get back into your houses immediately!”

There was a gratifying flurry of curtains. Rudgutter stood back and watched as the warehouse shuddered.

Lemuel dispatched the other stingbox-wielder with one elegant and careful shot. Isaac hurled his table down the stairs taking two officers with it when they had tried to rush him, and now he continued with his chymical sniping. Yagharek was helping him, at his direction, showering the attackers with noxious mixtures.

But this was all, could not but be, doomed valiance. There were too many militia. It helped that they were not prepared to kill, because Isaac and Lemuel and Yagharek had no such constraints. Isaac estimated that four militia had fallen: one to a bullet; one to a crushed skull; and two to random chymico-thaumaturgic reactions. But it could not last. The militia advanced on Lemuel behind their shields.

Isaac saw the militia look up and confer for a minute. Then one of them raised a flintlock rifle carefully, aiming it at Yagharek.