Choosing your way of eliminating Lady Boyle | Mission 5 - Lady Boyle's Last Party Dishonored Guide
Last update: 11 May 2016
New Main Quest: Eliminate Esma Boyle: Black Dress
New Optional Quest: Knock out Esma Boyle and deliver her alive to the basement
After you determine that it is Esma Boyle that is your target, you need to consider how you would like to eliminate her. You can, of course attack Esma, but in this case you would have to expect aggressive response from the guards. The problem can be settled by using a power (like time hold), or with sleeping bolts from a hiding place, but in general, it is better to try and find another solution.
If you've read Esma Boyle's Diary in her bedroom on the first floor, you will get to know that she has a soft spot for men. That is why it's worthwhile to initiate a conversation with her an suggest her that you two go to her bedroom.
Before you go to Esma's bedroom, it would be a good idea to talk to Lord Brisby on the ground floor (the above screenshot). This will unlock an alternative way of eliminating Esma without the necessity to kill her.
I recommend that, in order to get to Esma's bedroom, you use the service staircase next to the ballroom (the above screenshot), especially that you won't be stopped by anyone if you do.
After you get to the bedroom, you need to decide whether you want to kill Esma, or only render her unconscious? The latter option is, of course, a better one. To neutralize Esma, you can either use sleeping bolts, or choke her after you sneak up from behind.