1937. a new detective James. who's father was a best detective in London. he died due to Croydon typhoid. the agency which his father worked made James as a stand in to replace is father's place. the agency had a policy that ,the detectives who are working for the agency ,would not tell their name to he public. the agency would give them a name. the agency will give names of animals,birds and insects. and they will mark a painting of the animals, birds and insects which name were given to them. James got the name"bettle". his first case was a killer who kills the people brutally.