The goal of this quest is to find and deliver to the prison in Valentine a woman named Ellie Anne Swan, nicknamed "The Black widow". She must be delivered alive.
A wanted poster for Swan hangs on one wall of the prison in Valentine. Sheriff Malloy will give Arthur all the information he needs. Morgan needs to reach Cumberland falls, which is located to the West of the city.
Ellie Anne will be hiding in a small cave near the river. Not only would she be there, but the man who accompanied her would be shooting at Morgan. But Ellie would deal with him on her own.
Her attack on Arthur would follow. You can't kill it, so to defeat it, you will have to do without firearms.
The best way to do this is with a lasso, which Morgan will need to tie the woman before she goes on the offensive. Another scenario is that the woman will start running away. You can try to catch up with it on foot or on a horse and eventually also use a lasso.
Then you just have to throw her over a horse and take her to the prison in Valentine. The reward for her capture will be $ 25.