Original sentence: During the 1930s, Wheatley conceived a series of mysteries, presented as case files, with testimonies, letters, and pieces of evidence such as hairs or pills.For example, in the Roger Brook series the main character involves himself with Napoleon and Joséphine whilst spying for Prime Minister William Pitt the Younger.He came to be considered an authority on Satanism, the practice of exorcism, and black magic, toward all of which he expressed hostility.In many of his works, Wheatley wove in interactions between his characters and actual historical events and individuals
Edited sentence: During the 1930s, he conceived a series of mysteries, presented as case files, with testimonies, letters, and pieces of evidence such as hairs or pills.For example, in the Roger Brook series the main character involves himself with Napoleon and Joséphine whilst being a spy for Prime Minister William Pitt the Younger.He came to be considered an authority on this, satanism, the practice of exorcism, and black magic, to all of which he was hostile.His writing is very descriptive and in many works he manages to involve his characters with actual historical events while meeting real people