Men at Arms - Granite pillar

A thought broke through to Vimes' attention. Carrot's sword was a couple of feet long. He'd run Cruces clean through. But Cruces had been standing with his back to—

Vimes looked at the pillar. It was granite, and a foot thick. There was no cracking. There was just a blade-shaped hole, front to back.

***

Men at Arms p337