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Which end do readers expect? Either of the ones you given. Some will expect one, others the other That's why you should choose neither. You have two obvious options, plus a dull 'no choice made'....
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#3: Attribution notice added
Source: https://writers.stackexchange.com/a/10948 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
Which end do readers expect? Either of the ones you given. Some will expect one, others the other That's why you should choose neither. You have two obvious options, plus a dull 'no choice made'. That's one point where the difference between a common book and an excellent one is made. This is where the protagonist should not just decide or fail to make a decision. It's where the protagonist should get off the rails, refuse the choices given, and [find a third way](http://tvtropes.org/pmwiki/pmwiki.php/Main/TakeAThirdOption).(Warning! TVTropes). It should be a brilliant way that breaks the rules, sets things right, and as a bonus, leaves the one who set the rules out in the cold. Who knows what it would be. Maybe blackmail them and force them to comply. Maybe show mercy, and when the mercy is taken for weakness, show them his true strength, terrorize them and cow them into submission. Maybe start killing, one by one, until the rest does what he wants. Maybe convince them, through sincerity, or opposite, bluff them into submission. Maybe let them talk in their defense, and then stand by their side. Maybe force them through a trial of fire, that will change them. Maybe recognize they are all figureheads, and kill the true mastermind - possibly finding the mastermind was his sidekick all the time. I don't know what twist fits your story, but this is definitely the place where a twist should go. Always, see two simple options: choose third.