AGONY AT ANTIETAM takes place during the Civil War Maryland campaign of September, 1862 and culminates with the bloodiest single day in American history, the Battle of Antietam. Two soldiers with a mysterious connection, a stoic Rebel private and a Yankee lieutenant, a tortured genius, must fight each other for victory, survival, and the love of the same woman. The Rebel must also avenge the murder of his brother at the hands of renegades from the same side while the Yankee must flee military detectives who wrongfully accuse him of murder.
This isn't a hook, it's a description. Be specific. Focus on the characters and what's at stake. "tortured genius" is the worst sort of cliche. And "love of the same woman" is such an over used trope that it should never be used agaian.