Dreadful summit by Stanley Ellin (1964) This book is in excellent condition for its age apart from some minor signs of wear.

A wonderful cope of Dreadful Summit by Stanley Ellin, part of the Penguin Crime range. One day George LeMain turns sixteen, and on this day he decides to take up his father's gun and kill Al Judge, the sports columnist who bullied his father. Suspenseful and violent, the story puts characterisation first in a style typical of Ellin.