"An ex-officer of the Bridgeburner brigade."

NoK, UK mmpb, Dramatis Personae

"The man occupying his seat wore a leather vest over a padded linen shirt that hung in tatters down over the bench and leggings of iron-studded leather. Oiled leather wristlets half-covered forearms that bore a skein of scar tissue: puckered remnants of scoured flesh, the pale crescents of bladed edge, and the angry pink mottling of healed burns."

NoK, UK mmpb, p.82

"The outburst brought round the gaze of the fellow who'd claimed Temper's seat. The burns on his forearms extended to his face, and in a flash Temper recognized the source: Imperial alchemical munitions. An incendiary, most likely.

NoK, UK mmpb, p.86

"The man with the burn scars stood in the hall...'My name is Ash,' he said, his voice soft. 'Sergeant Ash.'"

NoK, UK mmpb, p.109

"Just short of Surly, he bent to the corpse nearest the chair and lifted its head. Kiska recognized the body.

'Ash,' said Surly . 'Ex-Lieutenant of the Bridgeburners. And one very determined man. She raised her bandaged hand. 'Acid.'"

NoK, UK mmpb, p.337