Olivia Rivers betrayed her mother and the Order of Mysteries, selling them out to the raiders. In the end, what happened to the Order? To Olivia and Shannon Rivers? With Olivia's login, the dweller should be able to gain access to the Headmistress' office and finally get some answers.
With Olivia's code in hand, the player can access the Headmistress' office by accessing the terminal and logging in as Olivia. Then it's a matter of authorizing access through the administrative actions menu.
On the Headmistress' terminal, the player can learn the entire sad history of the Order. However, to advance the quest, they only need to read the first entry, which will reveal that Olivia wanted to meet her mother at a secluded location northeast of the Top of the World. The player simply has to head there and collect the items from the bodies, then return to the Riverside Manor, log in as Shannon Rivers, and authorize the promotion. Thus concludes the quest line.