No Mercy (Sgt Major Crane story)

No Mercy:
"In my experience, those who beg for mercy seldom deserve it." Sgt Major Crane says to Billy. But how do other people react when someone begs for mercy? No Mercy is a short story leading Crane through several twists and turns, until he uncovers the truth.
There are four mystery stories in this collection and excerpts from the Sgt Major Crane novels. "Mercilessly well written"