So what are they doing in this tunnel that seems to go on forever? Monk isn’t sure. He’d ask, except Minx asked him if he trusts her enough to do what she says without asking a lot of questions. Of course he does. He trusts her enough to ask none . They went underground somewhere just north of the Newark sprawl. Monk thinks they must be passing under the Hudson River. Where are they going? They’re going to see the Master, but who that is or why they have to go through the underground to meet the slag Monk can only guess.