"John Holder's Weapons" is an exciting detective novel by the famous writer Robert Moore Williams. The story revolves around the mysterious appearance of a weapon belonging to the mysterious John Holder. A new weapon on the market, which can change the course of events in the world of mafia and crime, forces the main character to learn more about Holder's past and reveal the secret of this weapon. Will it be possible to solve the mystery and find the truth about John Holder? The collision of intrigue, risk and danger makes this novel incredibly exciting and tense.