Chotha Yakka (Fourth Ace aka an Ace up my Sleeve) is a Crime Thriller Novel written by James Hadley Chase and translated into Urdu Language by Siraj-ud-Din Sheeda. The Novel is very interesting and written in an excellent manner. This is a typical crime novel and the villainous characters in the story are greedy and corrupt. None of these characters can be trusted and they are the type of people who will betray you when they get even a slightest chance. In the story, almost everybody is corrupt. One strange thing in this novel is that Chase gives the idea that morals may not always be worth following. Those who are good or honest and follow the ethics of society need not always get rewarded. This novel may surprise those who feel that the ethical are always or should always be rewarded. In this novel, there are various sorts of characters. There are rich people and yet resort to crime. There are also middle-class people and resort to crime, thinking that crime will help them lead a better life. It is nice to read the differing criminal ways of the middle-class and the rich. Siraj ud Din Sheeda translated this novel into Urdu for the very popular Kamran Series Rawalpindi, introduced back in 70s and 80s to translate popular English crime mystery and detective novels in urdu langauge.