I think that house with the Seeq child in it has the clue, which is a piece of paper that is on the table. But you have to beat this ghost which is a hunt. You probably beat it by now though. I believe that is the place where the clue is.
i followed the instructions but i still couldnt find it.
No Trance is right it’s on the outer side of the arc of switches. shouldn’t have to go down any alleys just switch everything right then walk to other side of the switches, in the water by first or second switch to the left when facing center most switch of arc from inside, I believe. good luck anyways..