Why does Giles feel guilty in Act III of "The Crucible"?
When Reverend Hale appears in town, Giles Corey mentions that his wife has been reading strange books, and he finds it troubling. Reverend Hale assures Giles that he (Hale) will look into it. Reading strange books was frowned upon in Puritan society. Unfortunately, this information gets out and it is this piece of information which causes Martha Corey (Giles' wife) to be accused and eventually convicted of witchcraft. Martha is eventually hanged because of it. Giles then refuses to give more information to the "witch hunters" and is pressed to death because of it.