Have you seen this boy?
 

As we all know that at one point Boston ask Maggie "Have you seen this boy"

I know it is a point of the game where Brink disappeared

I have played the game lately and I tried it lots of time to find out.

But I had no success.

So, does anyone know at what point EXACTLY you can hear this phrase?

thx

I ask myself the same thing. I really don't know where to activate that line.

I found the part of the game, where Boston says this line:

When Brink dissapears the first time (on the museum island), visit Maggie in the library and talk to her.

When you talk about Brink, he will say this line.