Book 2: How do I get Abby to talk to me in Chapter 4: Dreaming?

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In Book 2 of Dreamfall Chapters, I'm stuck in Chapter 4: Dreaming.
I have two quests going on:
- Bring some information to Mira, but a bot is fixing Mira's front door and the game tells me to come back later.
- Find information about Abby to get her to tell me where I can find Hannah.
The problem is, nothing in the room Abby is in tells me anything and randomly wandering around town hasn't helped either.
There's are four manhole covers I can remove. One is welded shut, one is stuck partway open (too small for my character), one is watched by a policeman who threatens to arrest me, and the last is where Abby is.
How do I find the information to get Abby to help me?
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The Mimic Book 2 Chapter 1 (Full Walkthrough) [Roblox]
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Images: Luis Quintero, SHVETS production, Keira Burton, Monstera