Shrike

But before she could say anything, Shrike's fellow Stalkers had reacted. She saw their heads whip round at the sound of his voice, visors down and green light flaring through the eye-slits. In the Lazarus Brigade it sometimes happened that a battle-damaged Stalker would go mad, lashing out at his comrades, even claiming to remember his mortal life. They knew what had to be done. They turned toward Shrike, and the crash of armor against armor echoed from the low
roof. Fever threw herself sideways as Shrike stepped back out of the way of Corvus's blades. Whatever had gone wrong inside his Stalker's brain, it had not slowed or weakened him. He recovered in an instant, slammed Corvus's second blow aside, and drove his own blades through the other Stalker's armor, deep into the organs and machinery beneath. There were sparks and a glittering spray of fluids. Corvus gave a grating roar, and Shrike drew back and struck again. Corvus fell sideways, spewing smoke and a smell of burned wiring, the green
glow of his eyes going out. Lammergeier circled warily just beyond the reach of Shrike's talons. In the doorway of the inner chamber Wavey Godshawk appeared, the magneto pistol in her hands.

"Something's gone wrong with him!" Fever screamed. "Stop him!"

Her mother raised the pistol, pointing it at Shrike's head. Shrike lunged forward, seizing Lammergeier by his armored wrists. The vault was too small a space for such large creatures to fight in. An upended shelf spilled laboratory glassware; a cabinet was kicked into splinters. Shrike twisted Lammergeier sideways, shielding himself with the other Stalker's body as Wavey pulled the pistol's trigger. The pistol made a thin whining sound, almost lost in the clash and
scuffle of the struggling Stalkers. Lammergeier, caught by its blast, went rigid, juddering. Shrike levered his head off, shoved the body aside and strode toward the door, where Wavey stood fumbling with the magneto pistol.

Pg 208/232, Chapter 36, the Stalker’s Question, Fever Crumb