Avery will take the evidence and ask you to talk to Teddy Wright. The doctor will confirm that it belongs to Avery and implore you not to show it to Lee. At this point, you decide the fate of Acadia.
Avery, through either presenting the evidence or a persuasion check, can be convinced of her status as synth. She will request you to confront DiMA. You can extort money from her (1300 caps) with a difficult persuasion check, but otherwise it's off to Acadia.
When confronted, DiMA will be regretful. You can choose to convince him to turn himself in with Far Harbor (very difficult persuasion checks). DiMA will die at the hands of Far Harbor, but you can choose during the conversation to contain their rage to just DiMA. This requires you to pass a difficult persuasion check (to spare Acadia). The outcome of the check is only to allow Far Harbor to reconsider Allen's hate mongering.
If you helped Far Harbor (by completing quests associated with Living on the Edge and The Changing Tide), they will agree that Acadia is blameless and execute DiMA. Otherwise (or if you make no attempt to persuade them), Far Harbormen grab torches and pitchforks (well, guns, actually), and invade Acadia, killing everyone inside. They also shoot Brooks, as appetizer for the massacre.
Otherwise, keep his secret. This will lead to Reformation and the option to replace Tektus with someone less aggressive. Avery will offer no comment.
Allen Lee's path
If given the evidence, Lee will confront Avery. The player can intervene to stop him from shooting Avery and merely banish her, but all this will do is redirect the people's anger towards Acadia.
Acadia burns. The quest completes with Far Harbor under a new, more vicious management.
Find out DiMA's secret
One of DiMA's memories indicates he did something extreme to keep Far Harbor under his control. There's apparently a make-shift medical facility under the ruined Vim! Pop Factory. I should go there and get some answers.
Confront DiMA about Avery's murder
The real Captain Avery was murdered by DiMA. And then replaced with a synth duplicate. What I do with the proof of DiMA's crimes could have profound effects on the island.
Tell Far Harbor about Avery's murder
(Optional) Report back to Kasumi
DiMA killed the original Captain
DiMA killed the original Captain Avery and replaced her with a synth. After confronting him about it, I agreed to keep his secret and gave him the evidence.
Banner piece ·Buried stash ·Campground banner ·Heretical sign ·Islander's Almanac ·Missing synth's head ·Remains of Pepper ·Remains of Pepper II ·Remains of Mr. Purrs ·Remain of Sir Cattington ·Remains of Missy I ·Remains of Missy II ·Remains of Missy IV ·Storage drive