This is a first printing thus of Johnny Get Your Gun by John Ball, published in the UK in 1979 by Hamlyn.
It is an uncommon edition of the novel starring Virgil Tibbs, introduced in In the Heat of the Night.
From the publisher:
Somewhere in the city nine-year-old Johnny McGuire is alone and frightened - and armed with a .38 Colt revolver and several live bullets. When a black youth is killed, the Pasadena Police Department has a full-scale race riot on its hand. It looks as though Johnny is responsible, so he must be caught before he kills again - and before the militants whip the city into a frenzy of violence.
Virgil Tibbs has to play psychologist as wellas detective in order to uncover the truth of a cold and terrible murder.
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