After the conversation with Beskha, you cut back to Mira Forrester and travel to Kings Landing for the new king's crowning ceremony. Start by talking to Sera.
A conspiracy against my family
I must find Morgryn and Andros
You don't need details
Please help me / Sera will remember that
I will spill your secret / Sera will remember that
This is important
Sera's the lovely one
And you're quite handsome
I don't care for flattery
Lord Morgryn and Lord Andros
I just need a drink
I have personal business
After the conversation with Sera and Lord Tarwick, you will have to solve a mystery. Your task is to find out about the conspiracy against your family. Take a look around and stat eavesdropping on the guests, using the Eavesdrop On option. The one involved in the plot is Andros (you learn this after you eavesdrop on his conversation). After you have eavesdropped on all the guests, approach Andros and talk to him Lord Andros - Talk To.
I know you're working for Whitehill
Why were you arguing with Morgryn?
All that anger is bad for you
After the conversation, approach Morgryn and talk to him
I stole it and burn it
Every secret has a price
Wouldn't you like to know?
IF you have earlier talked to Andros, a new dialogue option will appear.
Andros is working for Whitehills
I have message from Andros
You've stopped dealing Ironwood?
After you pick the second option "I have message from Andros", Morgryn will burst in anger and he will let you I on his secret.
What Andros is planning ?
Why did he push you out?
We have a common enemy
During the conversation with Morgryn, you learn that Lyman Lannister is Andros's close partner. Approach him and start the conversation.
Let me help
I'm so sorry!
Why so nervous?
I hear you're an important deal maker
You work with Andros, right ?
You look like you need company
Whisper in it my ear?
You can trust me
I respect that
The conversation with Lyman will be interrupted by Andros himself and you do not learn anything interesting. Along your path, you will be accosted by Lord Tarwick, who wants to learn a few things about Sera.
Just tell me!
I'll trade you
Don't be a tease
I really couldn't say
[Lie] I can vouch for her family
Actually, Sera is a bastard
In this conversation, there appear two dialogue options that make up an important choice. You can tell Tarwick Sera's secret or lie to him and stand by your word. Regardless of which you do, Lord Tarwick returns the favor and tells you Lyman Lannister's secret. After the conversation, approach Lyman and resume the conversation that has been interrupted by Andros.
Shut up and listen
I'm sorry about what happened to you
Talk or I'll tell your secrets
Andros has betrayed you / Lyman won't forget that
After the conversation with Lyman you learn Andros's plan. On the spur of the moment, Lyman told you his secret. Andros is secretly gathering an army to launch an attack on house Forrester.
They'll destroy my family!
And you're helping them!
I'm going to stop Whitehill
The final stage is the conversation with Andros:
I'm going to destroy you
Don't be so bloody dramatic
You're afraid of handmaiden?