Particles of bone bounced along the floor. Harrowhark had thrown them in a long, overhand arc, and they fell true at Colum’s feet. Spikes erupted from the ground, crowding Colum between them, locking him in tight. Colum raised his white-booted foot indifferently, and kicked through them. They exploded into dusty, tooth-coloured clouds of calcium.

Gideon the Ninth - Act Four, Chapter Thirty-Four