how do you finish the find the mole quest?

[Jnikz]

I scouted civ and spoke with the chef in SM, i spoke with all the npc in tartaris. What's next?

[Nordom]

Following all the advice gathered accuse the only possible suspect, then pretend to go along with them and make your choice what to do from there.

[Jnikz]

who's the suspect, you can spoil it to me, i just want it gone from my task

[Nordom]

The Librarian